{"title":"Brand Spotlight: Archive Tubes","description":"\u003cdiv data-lark-html-role=\"root\"\u003e\u003cspan class=\"text-only\" data-eleid=\"6\"\u003eArchive Tubes is a trusted source of genuine, fully-tested NOS \u003cem\u003e(New Old Stock, unused vintage)\u003c\/em\u003e vacuum tubes from a decades-old family archive, backed by an \u003ca rel=\"noopener\" title=\"Apos Archive Tubes Warranty\" href=\"https:\/\/apos.audio\/pages\/the-apos-one-year-warranty-on-archive-tubes\" target=\"_blank\"\u003eApos one-year warranty\u003c\/a\u003e.\u003c\/span\u003e\u003c\/div\u003e","products":[{"product_id":"brimar-cv4003-vacuum-tube","title":"Brimar CV4003 (12AU7) 1960's Military Grade NOS Vacuum Tube","description":"\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cspan\u003eThe CV4003 Brimar is a precision dual triode tube, widely used in high-fidelity audio equipment and professional radio applications. Its grey plate construction and ring getter ensure stable operation, low noise, and excellent linearity. Fully tested on Amplitrex AT1000 to guarantee reliability, these tubes come in original Brimar boxes and are ideal for collectors and audiophiles seeking top-quality performance.\u003c\/span\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eArchive Assessed, Apos Assured\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eAll Archive tubes are thoroughly tested, inspected, photographed, and inventoried, guaranteeing the quality of each tube that's shipped to customers. All tubes carry an Apos 12-month warranty against manufacturing defects. \u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eAre the tubes...dusty...?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cspan\u003eBecause these are genuine New Old Stock tubes, small cosmetic irregularities may be present. These aren't defects but artifacts of vintage manufacturing and decades of storage. They have no impact on reliability or sonic performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cspan data-sheets-root=\"1\"\u003eSpecs\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand \/ Type:\u003c\/strong\u003e Brimar 12AU7 \/ ECC82 \/ CV4003 \/ 12AU7A \/ 12AU7WA \/ ECC802, \/ ECC802S \/ E82CC \/ ECC186 \/ 5814 \/ 5814A \/ 6189 \/ 6067 \/ CV491 \/ M8136 \/ B329 \/ 13D5 \/ A2293\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlate Type:\u003c\/strong\u003e Gray Plate\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGetter Type:\u003c\/strong\u003e Ring Getter\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMade in: \u003c\/b\u003eEngland\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eBox Type: \u003c\/b\u003eNOS in Original Box\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTested on:\u003c\/strong\u003e Amplitrex AT1000 Advanced Digital Tube Tested\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Archive Tubes","offers":[{"title":"Matched Pair (2 Tubes) \/ Archive Vault","offer_id":47015758201068,"sku":"APS-1260-4","price":460.0,"currency_code":"USD","in_stock":true},{"title":"Matched Pair (2 Tubes) \/ Gold","offer_id":47015758266604,"sku":"APS-1260-5","price":418.0,"currency_code":"USD","in_stock":true},{"title":"Matched Pair (2 Tubes) \/ Silver","offer_id":47015758332140,"sku":"APS-1260-6","price":390.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Archive Vault","offer_id":47015758233836,"sku":"APS-1260-7","price":880.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Gold","offer_id":47015758299372,"sku":"APS-1260-8","price":836.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Silver","offer_id":47015758364908,"sku":"APS-1260-9","price":780.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Archive Vault","offer_id":46984857288940,"sku":"APS-1260-1","price":220.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Gold","offer_id":46984857321708,"sku":"APS-1260-2","price":199.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Silver","offer_id":47011543679212,"sku":"APS-1260-3","price":185.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0225\/2721\/3642\/files\/apos-audio-archive-tubes-vacuum-tube-brimar-cv4003-12au7-1960-s-military-grade-vacuum-tube-1218427192.jpg?v=1771375567"},{"product_id":"siemens-e82cc-vacuum-tube","title":"Siemens E82CC (12AU7) NOS Vacuum Tube","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003eThe Siemens E82CC (early triple-mica Siemens \u0026amp; Halske) is one of the most respected premium-grade 12AU7 family tubes. Known for its clarity, precision, low microphonics, and high reliability, it is a top choice for high-end preamps and phono stages.\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eArchive Assessed, Apos Assured\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eAll Archive tubes are thoroughly tested, inspected, photographed, and inventoried, guaranteeing the quality of each tube that's shipped to customers. All tubes carry an Apos 12-month warranty against manufacturing defects. \u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eAre the tubes...dusty...?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cspan\u003eBecause these are genuine New Old Stock tubes, small cosmetic irregularities may be present. These aren't defects but artifacts of vintage manufacturing and decades of storage. They have no impact on reliability or sonic performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eSpecs\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBrand \/ Type:\u003c\/strong\u003e Siemens E82CC \/ 12AU7 \/ \u003cmeta charset=\"UTF-8\"\u003eECC82 \/ 12AU7A \/ 12AU7WA \/ ECC802 \/ ECC802S \/ E82CC \/ ECC186 \/ 5814 \/ 5814A \/ 6189 \/ 6067 \/ CV4003\/ CV491 \/ M8136\/ B329 \/ 13D5 \/ A2293\u003cbr\u003e\u003cstrong\u003eGetter type:\u003c\/strong\u003e Halo \/ Top Ring getter\u003cbr\u003e\u003cstrong\u003ePlate type:\u003c\/strong\u003e Gray plate\u003cbr\u003e\u003cstrong\u003eVersion:\u003c\/strong\u003e True early triple-mica version\u003cbr\u003e\u003cstrong\u003eTested on:\u003c\/strong\u003e Amplitrex AT1000 advanced digital tube tester\u003cbr\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e 12 months against manufacturing defects\u003c\/p\u003e","brand":"Archive Tubes","offers":[{"title":"Matched Pair (2 Tubes) \/ Archive Vault","offer_id":47142248284396,"sku":"APS-1259-4","price":650.0,"currency_code":"USD","in_stock":true},{"title":"Matched Pair (2 Tubes) \/ Gold","offer_id":47142248317164,"sku":"APS-1259-5","price":586.0,"currency_code":"USD","in_stock":true},{"title":"Matched Pair (2 Tubes) \/ Silver","offer_id":47142248349932,"sku":"APS-1259-6","price":545.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Archive Vault","offer_id":47142248382700,"sku":"APS-1259-7","price":1300.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Gold","offer_id":47142248415468,"sku":"APS-1259-8","price":1174.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Silver","offer_id":47142248448236,"sku":"APS-1259-9","price":1090.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Archive Vault","offer_id":47142248186092,"sku":"APS-1259-1","price":315.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Gold","offer_id":47142248218860,"sku":"APS-1259-2","price":283.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Silver","offer_id":47142248251628,"sku":"APS-1259-3","price":262.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0225\/2721\/3642\/files\/apos-audio-archive-tubes-vacuum-tube-siemens-e82cc-12au7-vacuum-tube-1220503291.jpg?v=1771370168"},{"product_id":"mullard-ecc82-vacuum-tube","title":"Mullard ECC82 (12AU7) NOS Vacuum Tube","description":"\u003cp dir=\"ltr\"\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cspan\u003eThe Mullard ECC82, known in the U.S. as the 12AU7, is a classic British small-signal dual triode known for its smooth, composed sonic character and long-term reliability. Produced across Mullard’s UK and European factories, these tubes became a staple in hi-fi amplifiers, preamps, and studio equipment where stability and musical balance mattered more than sheer gain. Sonically, the ECC82 is appreciated for its warm, natural midrange and controlled presentation, making it well suited for line stages, driver positions, and circuits that benefit from low noise and good linearity.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eArchive Assessed, Apos Assured\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eAll Archive tubes are thoroughly tested, inspected, photographed, and inventoried, guaranteeing the quality of each tube that's shipped to customers. All tubes carry an Apos 12-month warranty against manufacturing defects. \u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eAre the tubes...dusty...?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cspan\u003eBecause these are genuine New Old Stock tubes, small cosmetic irregularities may be present. These aren't defects but artifacts of vintage manufacturing and decades of storage. They have no impact on reliability or sonic performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cspan data-sheets-root=\"1\"\u003eSpecs\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand \/ Type:\u003c\/strong\u003e Mullard ECC82 \/ 12AU7 \/ 12AU7 \/ 12AU7A \/ 12AU7WA \/ ECC802 \/ ECC802S \/ E82CC \/ ECC186 \/ 5814 \/ 5814A \/ 6189 \/ 6067 \/ CV4003 \/ CV491 \/ M8136 \/ B329 \/ 13D5 \/ A2293\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGetter Type:\u003c\/strong\u003e Top Ring Getter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlate Type:\u003c\/strong\u003e Grey Plate\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMade in: \u003c\/b\u003eEngland\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTested on:\u003c\/strong\u003e Amplitrex AT1000 Advanced Digital Tube Tested\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Archive Tubes","offers":[{"title":"Matched Pair (2 Tubes) \/ Archive Vault","offer_id":47142248579308,"sku":"APS-1258-4","price":440.0,"currency_code":"USD","in_stock":true},{"title":"Matched Pair (2 Tubes) \/ Gold","offer_id":47142248612076,"sku":"APS-1258-5","price":398.0,"currency_code":"USD","in_stock":true},{"title":"Matched Pair (2 Tubes) \/ Silver","offer_id":47142248644844,"sku":"APS-1258-6","price":370.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Archive Vault","offer_id":47142248677612,"sku":"APS-1258-7","price":840.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Gold","offer_id":47142248710380,"sku":"APS-1258-8","price":756.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Silver","offer_id":47142248743148,"sku":"APS-1258-9","price":740.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Archive Vault","offer_id":47142248481004,"sku":"APS-1258-1","price":210.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Gold","offer_id":47142248513772,"sku":"APS-1258-2","price":189.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Silver","offer_id":47142248546540,"sku":"APS-1258-3","price":175.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0225\/2721\/3642\/files\/apos-audio-archive-tubes-vacuum-tube-mullard-ecc82-12au7-vacuum-tube-1218427164.jpg?v=1771375147"},{"product_id":"siemens-e88cc-vacuum-tube","title":"Siemens E88CC (6922) NOS Vacuum Tube","description":"\u003cp\u003eThe Siemens E88CC \/ 6922 is a premium high-spec double triode known for exceptional reliability, low noise, and outstanding linearity. These German-made versions feature gold pins, grey plates, and a top ring getter, making them highly desirable for high-end audio, preamps, DACs, and precision instrumentation. Their robust design ensures stable performance and long service life.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eArchive Assessed, Apos Assured\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eAll Archive tubes are thoroughly tested, inspected, photographed, and inventoried, guaranteeing the quality of each tube that's shipped to customers. All tubes carry an Apos 12-month warranty against manufacturing defects. \u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eAre the tubes...dusty...?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cspan\u003eBecause these are genuine New Old Stock tubes, small cosmetic irregularities may be present. These aren't defects but artifacts of vintage manufacturing and decades of storage. They have no impact on reliability or sonic performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cspan data-sheets-root=\"1\"\u003eSpecs\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand \/ Type:\u003c\/strong\u003e Siemens E88CC \/ 6922 \/ \u003cmeta charset=\"UTF-8\"\u003eECC88 \/ 6DJ8 \/ 6922 \/ 7308 \/ E188CC \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGetter Type:\u003c\/strong\u003e Top Ring Getter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlate Type:\u003c\/strong\u003e Gray Plate\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePin Type:\u003c\/strong\u003e Gold Pins\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMade in: \u003c\/b\u003eGermany\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTested on:\u003c\/strong\u003e Amplitrex AT1000 Advanced Digital Tube Tested\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Archive Tubes","offers":[{"title":"Matched Pair (2 Tubes) \/ Archive Vault","offer_id":47142248906988,"sku":"APS-1257-4","price":520.0,"currency_code":"USD","in_stock":true},{"title":"Matched Pair (2 Tubes) \/ Gold","offer_id":47142248939756,"sku":"APS-1257-5","price":452.0,"currency_code":"USD","in_stock":true},{"title":"Matched Pair (2 Tubes) \/ Silver","offer_id":47142248972524,"sku":"APS-1257-6","price":420.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Archive Vault","offer_id":47142249005292,"sku":"APS-1257-7","price":960.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Gold","offer_id":47142249038060,"sku":"APS-1257-8","price":904.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Silver","offer_id":47142249070828,"sku":"APS-1257-9","price":840.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Archive Vault","offer_id":47142248808684,"sku":"APS-1257-1","price":240.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Gold","offer_id":47142248841452,"sku":"APS-1257-2","price":216.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Silver","offer_id":47142248874220,"sku":"APS-1257-3","price":200.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0225\/2721\/3642\/files\/apos-audio-archive-tubes-vacuum-tube-siemens-e88cc-6922-vacuum-tube-1220503298.jpg?v=1771368371"},{"product_id":"ediswan-cv5358-vacuum-tube","title":"Ediswan CV5358 (ECC88) NOS Vacuum Tube","description":"\u003cp\u003e\u003cspan\u003eThe Ediswan CV5358 is a British military-spec dual triode built for applications where stability, low noise, and long-term reliability were critical. Manufactured by Edison Swan (Ediswan) in the UK, this valve was designed to meet strict government and communications standards, resulting in tight tolerances and consistent performance. In audio power supplies, the CV5358 is valued for its calm, well-regulated behavior, helping amplifiers maintain composure under load and reducing unwanted noise in downstream circuits.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eArchive Assessed, Apos Assured\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eAll Archive tubes are thoroughly tested, inspected, photographed, and inventoried, guaranteeing the quality of each tube that's shipped to customers. All tubes carry an Apos 12-month warranty against manufacturing defects. \u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eAre the tubes...dusty...?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cspan\u003eBecause these are genuine New Old Stock tubes, small cosmetic irregularities may be present. These aren't defects but artifacts of vintage manufacturing and decades of storage. They have no impact on reliability or sonic performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cspan data-sheets-root=\"1\"\u003eSpecs\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand \/ Type:\u003c\/strong\u003e Ediswan CV5358 \/ ECC88\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGetter Type:\u003c\/strong\u003e Top Ring Getter\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMade in: \u003c\/b\u003eEngland\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTested on:\u003c\/strong\u003e Amplitrex AT1000 Advanced Digital Tube Tested\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Archive Tubes","offers":[{"title":"Matched Pair (2 Tubes) \/ Archive Vault","offer_id":47142249464044,"sku":"APS-1256-4","price":230.0,"currency_code":"USD","in_stock":true},{"title":"Matched Pair (2 Tubes) \/ Gold","offer_id":47142249496812,"sku":"APS-1256-5","price":209.0,"currency_code":"USD","in_stock":true},{"title":"Matched Pair (2 Tubes) \/ Silver","offer_id":47142249529580,"sku":"APS-1256-6","price":195.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Archive Vault","offer_id":47142249562348,"sku":"APS-1256-7","price":460.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Gold","offer_id":47142249595116,"sku":"APS-1256-8","price":418.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Silver","offer_id":47142249627884,"sku":"APS-1256-9","price":390.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Archive Vault","offer_id":47142249365740,"sku":"APS-1256-1","price":105.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Gold","offer_id":47142249398508,"sku":"APS-1256-2","price":94.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Silver","offer_id":47142249431276,"sku":"APS-1256-3","price":87.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0225\/2721\/3642\/files\/apos-audio-archive-tubes-vacuum-tube-ediswan-cv5358-ecc88-vacuum-tube-1218427179.jpg?v=1771374668"},{"product_id":"brimar-6060-vacuum-tube","title":"Brimar 6060 (12AT7) NOS Vacuum Tube","description":"\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cspan\u003eThe Brimar 6060 is a British-made dual triode tube from the classic era of Brimar production (primarily 1950s-1960s, made in Footscray, Kent, UK). The 6060 is closely related to the 12AT7, sharing a reputation for stable output, good linearity, and long service life. It's the Brimar version of a high-reliability double triode, comparable to the Mullard M8162 or the Telefunken ECC801S \/ GEC A2900. \u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eArchive Assessed, Apos Assured\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eAll Archive tubes are thoroughly tested, inspected, photographed, and inventoried, guaranteeing the quality of each tube that's shipped to customers. All tubes carry an Apos 12-month warranty against manufacturing defects. \u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eAre the tubes...dusty...?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cspan\u003eBecause these are genuine New Old Stock tubes, small cosmetic irregularities may be present. These aren't defects but artifacts of vintage manufacturing and decades of storage. They have no impact on reliability or sonic performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cspan data-sheets-root=\"1\"\u003eSpecs\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand \/ Type:\u003c\/strong\u003e Brimar 6060 \/ 12AT7 \/ ECC81 \/ E81CC \/ 6201 \/ M8162 \/ CV4024 \/ CV455 \/ A2900 \/ 12AT7A \/ 12AT7WA \/ 12AT7WB \/ 12ATWC \/ ECC801 \/ ECC801S\u003cmeta charset=\"UTF-8\"\u003e \u003cstrong data-start=\"633\" data-end=\"643\"\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGetter Type:\u003c\/strong\u003e Top Ring Getter\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMade in: \u003c\/b\u003eEngland\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eBox Type: \u003c\/b\u003eNOS in Original Box\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTested on:\u003c\/strong\u003e Amplitrex AT1000 Advanced Digital Tube Tested\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Archive Tubes","offers":[{"title":"Matched Pair (2 Tubes) \/ Archive Vault","offer_id":47142249857260,"sku":"APS-1255-4","price":220.0,"currency_code":"USD","in_stock":true},{"title":"Matched Pair (2 Tubes) \/ Gold","offer_id":47142249890028,"sku":"APS-1255-5","price":202.0,"currency_code":"USD","in_stock":true},{"title":"Matched Pair (2 Tubes) \/ Silver","offer_id":47142249922796,"sku":"APS-1255-6","price":190.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Archive Vault","offer_id":47142249955564,"sku":"APS-1255-7","price":440.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Gold","offer_id":47142249988332,"sku":"APS-1255-8","price":404.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Silver","offer_id":47142250021100,"sku":"APS-1255-9","price":380.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Archive Vault","offer_id":47142249758956,"sku":"APS-1255-1","price":100.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Gold","offer_id":47142249791724,"sku":"APS-1255-2","price":91.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Silver","offer_id":47142249824492,"sku":"APS-1255-3","price":85.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0225\/2721\/3642\/files\/apos-audio-archive-tubes-vacuum-tube-brimar-6060-12at7-vacuum-tube-1218427208.jpg?v=1771374127"},{"product_id":"rca-6as7g-vacuum-tube","title":"RCA 6AS7G (6080) NOS Vacuum Tube","description":"\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003eThe RCA 6AS7G is a high-quality dual triode power tube widely used in audio amplifiers, OTL headphone amps, and power regulators. Boasting a warm tone, reliability, and smooth output characteristics, the 6AS7G delivers excellent balance and linearity, making it a favorite among audiophiles.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eArchive Assessed, Apos Assured\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eAll Archive tubes are thoroughly tested, inspected, photographed, and inventoried, guaranteeing the quality of each tube that's shipped to customers. All tubes carry an Apos 12-month warranty against manufacturing defects. \u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eAre the tubes...dusty...?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cspan\u003eBecause these are genuine New Old Stock tubes, small cosmetic irregularities may be present. These aren't defects but artifacts of vintage manufacturing and decades of storage. They have no impact on reliability or sonic performance.\u003c\/span\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cspan\u003eSpecs\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand \/ Type:\u003c\/strong\u003e RCA 6AS7G \/ 6080 \/ 6AS7G \/ 5998 \/ 6080 \/ 6336 \/ 6528 \/ 6AS7GA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGetter Type:\u003c\/strong\u003e Ring Getter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBox Type: \u003c\/strong\u003eNOS in original box\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMade in: \u003c\/b\u003eUSA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTested on:\u003c\/strong\u003e Amplitrex AT1000 Advanced Digital Tube Tested\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Archive Tubes","offers":[{"title":"Matched Pair (2 Tubes) \/ Archive Vault","offer_id":47142250152172,"sku":"APS-1254-4","price":460.0,"currency_code":"USD","in_stock":true},{"title":"Matched Pair (2 Tubes) \/ Gold","offer_id":47142250184940,"sku":"APS-1254-5","price":418.0,"currency_code":"USD","in_stock":true},{"title":"Matched Pair (2 Tubes) \/ Silver","offer_id":47142250217708,"sku":"APS-1254-6","price":390.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Archive Vault","offer_id":47142250250476,"sku":"APS-1254-7","price":880.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Gold","offer_id":47142250283244,"sku":"APS-1254-8","price":836.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Silver","offer_id":47142250316012,"sku":"APS-1254-9","price":780.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Archive Vault","offer_id":47142250053868,"sku":"APS-1254-1","price":220.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Gold","offer_id":47142250086636,"sku":"APS-1254-2","price":199.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Silver","offer_id":47142250119404,"sku":"APS-1254-3","price":185.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0225\/2721\/3642\/files\/apos-audio-archive-tubes-vacuum-tube-rca-6as7g-6080-vacuum-tube-1218497197.jpg?v=1771371188"},{"product_id":"rca-807-vacuum-tube","title":"RCA 807 NOS Vacuum Tube","description":"\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003eThe RCA 807 (VT100) is a classic beam power tube widely used in vintage transmitters, hi-fi amplifiers, and professional audio equipment. Featuring a bottom dual “D” getter with 3 rivets and robust construction, it provides stable performance, reliable output, and excellent linearity.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eArchive Assessed, Apos Assured\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eAll Archive tubes are thoroughly tested, inspected, photographed, and inventoried, guaranteeing the quality of each tube that's shipped to customers. All tubes carry an Apos 12-month warranty against manufacturing defects. \u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eAre the tubes...dusty...?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cspan\u003eBecause these are genuine New Old Stock tubes, small cosmetic irregularities may be present. These aren't defects but artifacts of vintage manufacturing and decades of storage. They have no impact on reliability or sonic performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cspan\u003eSpecs\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand \/ Type:\u003c\/strong\u003e RCA 807 \/ VT100 \/ VT60 \/ 1625 \/ ATS25 \/ 6L6G\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGetter type:\u003c\/strong\u003e Bottom dual “D” getter, 3 rivet\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase type:\u003c\/strong\u003e Brown base\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMade in:\u003c\/strong\u003e USA\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTested on:\u003c\/strong\u003e Amplitrex AT1000 advanced digital tube tester\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Archive Tubes","offers":[{"title":"Matched Pair (2 Tubes) \/ Archive Vault","offer_id":47142250447084,"sku":"APS-1253-4","price":142.0,"currency_code":"USD","in_stock":true},{"title":"Matched Pair (2 Tubes) \/ Gold","offer_id":47142250479852,"sku":"APS-1253-5","price":131.0,"currency_code":"USD","in_stock":true},{"title":"Matched Pair (2 Tubes) \/ Silver","offer_id":47142250512620,"sku":"APS-1253-6","price":125.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Archive Vault","offer_id":47142250545388,"sku":"APS-1253-7","price":284.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Gold","offer_id":47142250578156,"sku":"APS-1253-8","price":263.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Silver","offer_id":47142250610924,"sku":"APS-1253-9","price":250.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Archive Vault","offer_id":47142250348780,"sku":"APS-1253-1","price":61.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Gold","offer_id":47142250381548,"sku":"APS-1253-2","price":55.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Silver","offer_id":47142250414316,"sku":"APS-1253-3","price":52.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0225\/2721\/3642\/files\/apos-audio-archive-tubes-vacuum-tube-rca-807-vacuum-tube-1220503307.jpg?v=1771377996"},{"product_id":"gec-cv6-vacuum-tube","title":"GEC CV6 (2C22\/ 6C8C) NOS Vacuum Tube","description":"\u003cp\u003eThe CV6 GEC is a 1930s vintage military grade 2C22\/ VR135 \/ DET20, which is equivalent to 6J5 and half of 6SN7. 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data-turn-id=\"request-WEB:c215f913-6c15-4525-a7a9-ad15748d6347-9\" dir=\"auto\" class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" tabindex=\"-1\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:--spacing(4)] @w-sm\/main:[--thread-content-margin:--spacing(6)] @w-lg\/main:[--thread-content-margin:--spacing(16)] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\" tabindex=\"-1\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col grow\"\u003e\n\u003cdiv data-message-model-slug=\"gpt-5-2\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal [.text-message+\u0026amp;]:mt-1\" dir=\"auto\" data-message-id=\"ff9661fd-2ce1-4ecd-b193-92f534afa724\" data-message-author-role=\"assistant\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden first:pt-[1px]\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert w-full wrap-break-word light markdown-new-styling\"\u003e\n\u003cp data-is-only-node=\"\" data-is-last-node=\"\" data-end=\"767\" data-start=\"0\"\u003eThe NEC 6X4 is a compact full-wave rectifier that boasts reliability, low noise, and steady voltage delivery in small-signal and low-power audio circuits. Manufactured in Japan to tight industrial standards, NEC versions are well regarded for their calm, controlled presentation by keeping the power supply quiet and well regulated, which helps downstream stages perform at their best. \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/article\u003e\n\u003ch3\u003e\u003cstrong\u003eArchive Assessed, Apos Assured\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eAll Archive tubes are thoroughly tested, inspected, photographed, and inventoried, guaranteeing the quality of each tube that's shipped to customers. All tubes carry an Apos 12-month warranty against manufacturing defects. \u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eAre the tubes...dusty...?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cspan\u003eBecause these are genuine New Old Stock tubes, small cosmetic irregularities may be present. These aren't defects but artifacts of vintage manufacturing and decades of storage. They have no impact on reliability or sonic performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cspan data-sheets-root=\"1\"\u003eSpecs\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand \/ Type:\u003c\/strong\u003e NEC 6X4 \/ EZ90 \/ U78 \/ CV493 \/ CV4005 \/ 6202\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlate Type:\u003c\/strong\u003e Gray Plate\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGetter Type:\u003c\/strong\u003e Top Ring Getter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBox\u003c\/strong\u003e: Original Box\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMade in: \u003c\/b\u003eJapan\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTested on:\u003c\/strong\u003e Amplitrex AT1000 Advanced Digital Tube Tested\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Archive Tubes","offers":[{"title":"Matched Pair (2 Tubes) \/ Archive Vault","offer_id":47142261063916,"sku":"APS-1251-4","price":100.0,"currency_code":"USD","in_stock":true},{"title":"Matched Pair (2 Tubes) \/ Gold","offer_id":47142261096684,"sku":"APS-1251-5","price":94.0,"currency_code":"USD","in_stock":true},{"title":"Matched Pair (2 Tubes) \/ Silver","offer_id":47142261129452,"sku":"APS-1251-6","price":90.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Archive Vault","offer_id":47142261162220,"sku":"APS-1251-7","price":200.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Gold","offer_id":47142261194988,"sku":"APS-1251-8","price":188.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Silver","offer_id":47142261227756,"sku":"APS-1251-9","price":180.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Archive Vault","offer_id":47142260965612,"sku":"APS-1251-1","price":40.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Gold","offer_id":47142260998380,"sku":"APS-1251-2","price":37.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Silver","offer_id":47142261031148,"sku":"APS-1251-3","price":35.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0225\/2721\/3642\/files\/apos-audio-archive-tubes-vacuum-tube-nec-6x4-6202-vacuum-tube-1218427148.jpg?v=1771373168"},{"product_id":"philips-el84-vacuum-tube","title":"Philips EL84 NOS Vacuum Tube","description":"\u003cp dir=\"ltr\"\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cspan\u003ePhilips EL84 tubes are a cornerstone of classic European tube design: compact, efficient power pentodes that helped define the sound of countless hi-fi and guitar amplifiers from the 1950s onward. Produced across Philips’ network of European factories, these boast consistency, long service life, and a tonal balance that pairs lively dynamics with a smooth, harmonically rich midrange. \u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eArchive Assessed, Apos Assured\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eAll Archive tubes are thoroughly tested, inspected, photographed, and inventoried, guaranteeing the quality of each tube that's shipped to customers. All tubes carry an Apos 12-month warranty against manufacturing defects. \u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eAre the tubes...dusty...?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cspan\u003eBecause these are genuine New Old Stock tubes, small cosmetic irregularities may be present. These aren't defects but artifacts of vintage manufacturing and decades of storage. 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All tubes carry an Apos 12-month warranty against manufacturing defects.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eAre the tubes...dusty...?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cspan\u003eBecause these are genuine New Old Stock tubes, small cosmetic irregularities may be present. These aren't defects but artifacts of vintage manufacturing and decades of storage. They have no impact on reliability or sonic performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cspan data-sheets-root=\"1\"\u003eSpecs\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand \/ Type:\u003c\/strong\u003e Russian 6H5C \/ 6N5S \/ A8134 \/ 6080 \/ 6AS7G \/ 6336 \/ 6528\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGetter Type:\u003c\/strong\u003e Dual Plate Getter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade: \u003c\/strong\u003eMilitary Grade\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMade in: \u003c\/b\u003eUSSR\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBox Type: \u003c\/strong\u003eNOS in Original Box\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTested on:\u003c\/strong\u003e Amplitrex AT1000 Advanced Digital Tube Tested\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Archive Tubes","offers":[{"title":"Matched Pair (2 Tubes) \/ Archive Vault","offer_id":47142261686508,"sku":"APS-1249-4","price":160.0,"currency_code":"USD","in_stock":true},{"title":"Matched Pair (2 Tubes) \/ Gold","offer_id":47142261719276,"sku":"APS-1249-5","price":148.0,"currency_code":"USD","in_stock":true},{"title":"Matched Pair (2 Tubes) \/ Silver","offer_id":47142261752044,"sku":"APS-1249-6","price":140.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Archive Vault","offer_id":47142261784812,"sku":"APS-1249-7","price":320.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Gold","offer_id":47142261817580,"sku":"APS-1249-8","price":296.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Silver","offer_id":47142261850348,"sku":"APS-1249-9","price":280.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Archive Vault","offer_id":47142261588204,"sku":"APS-1249-1","price":70.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Gold","offer_id":47142261620972,"sku":"APS-1249-2","price":64.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Silver","offer_id":47142261653740,"sku":"APS-1249-3","price":60.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0225\/2721\/3642\/files\/apos-audio-archive-tubes-vacuum-tube-archive-tubes-6h5c-6as7g-vacuum-tube-1218497191.jpg?v=1771371668"},{"product_id":"mullard-m8162-vacuum-tube","title":"Mullard M8162 (CV4024\/ 12AT7WA) NOS Vacuum Tube","description":"\u003cp\u003eThe Mullard\u003cstrong data-end=\"21\" data-start=\"4\"\u003e \u003c\/strong\u003eM8162 is Mullard’s military-spec 12AT7, built to tighter tolerances than standard production tubes and screened specifically for low microphonics and long service life. It was originally made for communications and instrumentation work, where stability at high frequencies and predictable behavior under continuous operation were non-negotiable.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eArchive Assessed, Apos Assured\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eAll Archive tubes are thoroughly tested, inspected, photographed, and inventoried, guaranteeing the quality of each tube that's shipped to customers. All tubes carry an Apos 12-month warranty against manufacturing defects. \u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eAre the tubes...dusty...?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cspan\u003eBecause these are genuine New Old Stock tubes, small cosmetic irregularities may be present. These aren't defects but artifacts of vintage manufacturing and decades of storage. They have no impact on reliability or sonic performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cspan\u003eSpecs\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand \/ Type:\u003c\/strong\u003e Mullard M8162 \/ 12AT7WA \/ ECC81 \/ ECC801 \/ ECC801S \/ E81CC, 12AT7 \/ 12AT7A \/ 12AT7WA \/ 12AT7WB \/ 12AT7WC \/ A2900 \/ M8162 \/ CV4024 \/ CV4034 \/ CV455 \/ 6201 \/ 5965 \/ 6060\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGetter Type:\u003c\/strong\u003e Ring Getter\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMade in: \u003c\/b\u003eEngland\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTested on:\u003c\/strong\u003e Amplitrex AT1000 Advanced Digital Tube Tested\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Archive Tubes","offers":[{"title":"Matched Pair (2 Tubes) \/ Archive Vault","offer_id":47142263881964,"sku":"APS-1248-4","price":220.0,"currency_code":"USD","in_stock":true},{"title":"Matched Pair (2 Tubes) \/ Gold","offer_id":47142263914732,"sku":"APS-1248-5","price":182.0,"currency_code":"USD","in_stock":true},{"title":"Matched Pair (2 Tubes) \/ Silver","offer_id":47142263947500,"sku":"APS-1248-6","price":170.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Archive Vault","offer_id":47142263980268,"sku":"APS-1248-7","price":400.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Gold","offer_id":47142264013036,"sku":"APS-1248-8","price":364.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Silver","offer_id":47142264045804,"sku":"APS-1248-9","price":340.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Archive Vault","offer_id":47142263783660,"sku":"APS-1248-1","price":90.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Gold","offer_id":47142263816428,"sku":"APS-1248-2","price":81.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Silver","offer_id":47142263849196,"sku":"APS-1248-3","price":75.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0225\/2721\/3642\/files\/apos-audio-archive-tubes-vacuum-tube-mullard-m8162-cv4024-12at7wa-vacuum-tube-1218427156.jpg?v=1771372450"},{"product_id":"cv6-to-6sn7-vacuum-tube-adapter","title":"CV6 To 6SN7 Vacuum Tube Adapter","description":"\u003cp\u003eHigh-quality adapter allowing 2C22 \/ 7193 \/ CV6 tubes to be used in equipment designed for 6SN7 tube sockets. 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Developed as part of the USSR’s domestic receiving tube program, the 6H8C was built to provide a rugged, standardized medium-mu dual triode comparable to established Western designs while supporting the needs of military and civilian electronics production. The plate getter structure and robust Soviet manufacturing reflect the durable construction practices commonly found in Russian small-signal tubes of the period.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eArchive Assessed, Apos Assured\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eAll Archive tubes are thoroughly tested, inspected, photographed, and inventoried, guaranteeing the quality of each tube that's shipped to customers. All tubes carry an Apos 12-month warranty against manufacturing defects.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eAre the tubes...dusty...?\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eBecause these are genuine New Old Stock tubes, small cosmetic irregularities may be present. These aren't defects but artifacts of vintage manufacturing and decades of storage. They have no impact on reliability or sonic performance.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eSpecs\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand \/ Type:\u003c\/strong\u003e Russian 6H8C 6SN7GT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGetter Type:\u003c\/strong\u003e Plate Getter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase Type:\u003c\/strong\u003e Black Base\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMade in:\u003c\/strong\u003e USSR\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBox Type:\u003c\/strong\u003e NOS in Original Box\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTested on:\u003c\/strong\u003e Amplitrex AT1000 Advanced Digital Tube Tester\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Archive Tubes","offers":[{"title":"Matched Pair (2 Tubes) \/ Archive Vault","offer_id":47746628452588,"sku":"APS-1354-1","price":172.0,"currency_code":"USD","in_stock":true},{"title":"Matched Pair (2 Tubes) \/ Gold","offer_id":47746628485356,"sku":"APS-1354-2","price":158.0,"currency_code":"USD","in_stock":true},{"title":"Matched Pair (2 Tubes) \/ Silver","offer_id":47746628518124,"sku":"APS-1354-3","price":150.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Archive Vault","offer_id":47746628550892,"sku":"APS-1354-4","price":344.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Gold","offer_id":47746628583660,"sku":"APS-1354-5","price":317.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Silver","offer_id":47746628616428,"sku":"APS-1354-6","price":300.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Archive Vault","offer_id":47746628649196,"sku":"APS-1354-7","price":76.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Gold","offer_id":47746628681964,"sku":"APS-1354-8","price":69.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Silver","offer_id":47746628714732,"sku":"APS-1354-9","price":65.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0225\/2721\/3642\/files\/RUSSIAN6H8C_6.jpg?v=1783783271"},{"product_id":"archive-tubes-6l6gc-6n3c-vacuum-tube","title":"Archive Tubes 6L6GC (6N3C) NOS Vacuum Tube","description":"\u003cp\u003eThe 6L6GC \/ 6N3C is a Soviet-produced beam power tube manufactured for use in high-power audio amplification and industrial electronics during the Cold War era. As part of the long-running 6L6 family, the type reflects the Soviet Union’s adaptation of a proven Western beam tetrode design that became a standard output tube in both Hi-Fi and instrument amplifiers. These examples feature the desirable Bottom Inverted Cup Getter and Long Grey Plate construction, a rugged internal design with stable operation, efficient heat dissipation, and long service life.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eArchive Assessed, Apos Assured\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eAll Archive tubes are thoroughly tested, inspected, photographed, and inventoried, guaranteeing the quality of each tube that's shipped to customers. All tubes carry an Apos 12-month warranty against manufacturing defects.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eAre the tubes...dusty...?\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eBecause these are genuine New Old Stock tubes, small cosmetic irregularities may be present. These aren't defects but artifacts of vintage manufacturing and decades of storage. They have no impact on reliability or sonic performance.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eSpecs\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand \/ Type:\u003c\/strong\u003e 6L6GC \/ 6N3C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGetter Type:\u003c\/strong\u003e Bottom Inverted Cup Getter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlate Type:\u003c\/strong\u003e Long Grey Plate\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase Type:\u003c\/strong\u003e Black Base\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMade in:\u003c\/strong\u003e USSR\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBox Type:\u003c\/strong\u003e NOS in New White Box\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTested on:\u003c\/strong\u003e Amplitrex AT1000 Advanced Digital Tube Tester\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Archive Tubes","offers":[{"title":"Matched Pair (2 Tubes) \/ Archive Vault","offer_id":47746718662892,"sku":"APS-1357-1","price":250.0,"currency_code":"USD","in_stock":true},{"title":"Matched Pair (2 Tubes) \/ Gold","offer_id":47746718695660,"sku":"APS-1357-2","price":229.0,"currency_code":"USD","in_stock":true},{"title":"Matched Pair (2 Tubes) \/ Silver","offer_id":47746718728428,"sku":"APS-1357-3","price":215.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Archive Vault","offer_id":47746718761196,"sku":"APS-1357-4","price":500.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Gold","offer_id":47746718793964,"sku":"APS-1357-5","price":458.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Silver","offer_id":47746718826732,"sku":"APS-1357-6","price":430.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Archive Vault","offer_id":47746718859500,"sku":"APS-1357-7","price":115.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Gold","offer_id":47746718892268,"sku":"APS-1357-8","price":104.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Silver","offer_id":47746718925036,"sku":"APS-1357-9","price":97.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0225\/2721\/3642\/files\/apos-audio-archive-tubes-vacuum-tube-archive-tubes-6l6gc-6n3c-vacuum-tube-1248568422.jpg?v=1783782969"},{"product_id":"archive-tubes-rca-6f8g-vacuum-tube","title":"RCA 6F8G NOS Vacuum Tube","description":"\u003cdiv data-is-intersecting=\"true\" data-turn-id-container=\"request-WEB:aa5978b9-3b86-4678-a02b-8fc60ab44037-2\" class=\"\"\u003e\n\u003csection data-turn=\"assistant\" data-testid=\"conversation-turn-2\" data-turn-id-container=\"request-WEB:aa5978b9-3b86-4678-a02b-8fc60ab44037-2\" data-turn-id=\"request-WEB:aa5978b9-3b86-4678-a02b-8fc60ab44037-2\" dir=\"auto\" class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\" data-conversation-screenshot-content=\"\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-turn-start-message=\"true\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" data-message-model-slug=\"gpt-5-5\" dir=\"auto\" data-message-id=\"61d862b8-5844-4808-baff-ca3d2fe632ea\" data-message-author-role=\"assistant\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003cp data-is-only-node=\"\" data-is-last-node=\"\" data-end=\"768\" data-start=\"0\"\u003eThe RCA 6F8G is a New Old Stock American-made twin triode vacuum tube produced for use in early radio, communications, and audio equipment. Introduced during the formative years of octal tube development, the 6F8G reflects RCA’s efforts to provide compact, high-gain dual-triode performance for low-level amplification and signal-processing applications. \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003ch2\u003e\u003cstrong\u003eArchive Assessed, Apos Assured\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eAll Archive tubes are thoroughly tested, inspected, photographed, and inventoried, guaranteeing the quality of each tube that's shipped to customers. All tubes carry an Apos 12-month warranty against manufacturing defects.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eAre the tubes...dusty...?\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eBecause these are genuine New Old Stock tubes, small cosmetic irregularities may be present. These aren't defects but artifacts of vintage manufacturing and decades of storage. They have no impact on reliability or sonic performance.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eSpecs\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand \/ Type:\u003c\/strong\u003e RCA 6F8G\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eGlass Type: \u003c\/b\u003eBlack Coated \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase Type:\u003c\/strong\u003e Black Base\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMica Type:\u003c\/strong\u003e Round\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMade in:\u003c\/strong\u003e USA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBox Type:\u003c\/strong\u003e NOS in New White Box\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTested on:\u003c\/strong\u003e Amplitrex AT1000 Advanced Digital Tube Tester\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Archive Tubes","offers":[{"title":"Matched Pair (2 Tubes) \/ Archive Vault","offer_id":47753118580972,"sku":"APS-1362-1","price":536.0,"currency_code":"USD","in_stock":true},{"title":"Matched Pair (2 Tubes) \/ Gold","offer_id":47753118613740,"sku":"APS-1362-2","price":484.0,"currency_code":"USD","in_stock":true},{"title":"Matched Pair (2 Tubes) \/ Silver","offer_id":47753118646508,"sku":"APS-1362-3","price":450.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Archive Vault","offer_id":47753118679276,"sku":"APS-1362-4","price":1072.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Gold","offer_id":47753118712044,"sku":"APS-1362-5","price":968.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Silver","offer_id":47753118744812,"sku":"APS-1362-6","price":900.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Archive Vault","offer_id":47753118777580,"sku":"APS-1362-7","price":258.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Gold","offer_id":47753118810348,"sku":"APS-1362-8","price":232.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Silver","offer_id":47753118843116,"sku":"APS-1362-9","price":215.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0225\/2721\/3642\/files\/apos-audio-archive-tubes-vacuum-tube-rca-6f8g-vacuum-tube-1253723712.jpg?v=1786374374"},{"product_id":"sylvania-5r4gyb-vacuum-tube","title":"Sylvania 5R4GYB NOS Vacuum Tube","description":"\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cspan\u003eThe Sylvania 5R4GYA is a full-wave rectifier tube manufactured in the United States for high-voltage power-supply service in electronic and industrial equipment. Developed as part of the rugged 5R4 rectifier family, the GYA variant reflects Sylvania's emphasis on durable construction for demanding power applications. \u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eArchive Assessed, Apos Assured\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eAll Archive tubes are thoroughly tested, inspected, photographed, and inventoried, guaranteeing the quality of each tube that's shipped to customers. All tubes carry an Apos 12-month warranty against manufacturing defects.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eAre the tubes...dusty...?\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eBecause these are genuine New Old Stock tubes, small cosmetic irregularities may be present. These aren't defects but artifacts of vintage manufacturing and decades of storage. They have no impact on reliability or sonic performance.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eSpecs\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand \/ Type:\u003c\/strong\u003e Sylvania 5R4GYA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlate Type:\u003c\/strong\u003e Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase Type:\u003c\/strong\u003e Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMade in:\u003c\/strong\u003e USA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBox Type:\u003c\/strong\u003e NOS in Original Box\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTested on:\u003c\/strong\u003e Amplitrex AT1000 Advanced Digital Tube Tester\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Archive Tubes","offers":[{"title":"Matched Pair (2 Tubes) \/ Archive Vault","offer_id":47945005433068,"sku":"APS-1431-1","price":190.0,"currency_code":"USD","in_stock":true},{"title":"Matched Pair (2 Tubes) \/ Gold","offer_id":47945005465836,"sku":"APS-1431-2","price":175.0,"currency_code":"USD","in_stock":true},{"title":"Matched Pair (2 Tubes) \/ Silver","offer_id":47945005498604,"sku":"APS-1431-3","price":165.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Archive Vault","offer_id":47945005531372,"sku":"APS-1431-4","price":380.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Gold","offer_id":47945005564140,"sku":"APS-1431-5","price":350.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Silver","offer_id":47945005596908,"sku":"APS-1431-6","price":330.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Archive Vault","offer_id":47945005629676,"sku":"APS-1431-7","price":85.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Gold","offer_id":47945005662444,"sku":"APS-1431-8","price":77.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Silver","offer_id":47945005695212,"sku":"APS-1431-9","price":72.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0225\/2721\/3642\/files\/apos-audio-archive-tubes-vacuum-tube-sylvania-5r4gyb-nos-vacuum-tube-1253723664.jpg?v=1791585789"},{"product_id":"western-electric-vt-25-vacuum-tube","title":"Western Electric VT-25 NOS Vacuum Tube","description":"\u003cp\u003e\u003cspan\u003e\u003cmeta charset=\"UTF-8\"\u003eThe Western Electric VT-25 is a directly heated power triode manufactured in the United States for military radio and communications equipment, particularly aircraft transmitters of the World War II era. Closely related to the VT-25A and Type 10 family, it reflects Western Electric’s specialized production of rugged transmitting and audio-frequency tubes for professional service. \u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eArchive Assessed, Apos Assured\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eAll Archive tubes are thoroughly tested, inspected, photographed, and inventoried, guaranteeing the quality of each tube that's shipped to customers. All tubes carry an Apos 12-month warranty against manufacturing defects.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eAre the tubes...dusty...?\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eBecause these are genuine New Old Stock tubes, small cosmetic irregularities may be present. These aren't defects but artifacts of vintage manufacturing and decades of storage. They have no impact on reliability or sonic performance.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eSpecs\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand \/ Type:\u003c\/strong\u003e Western Electric VT-25 \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlate Type: \u003c\/strong\u003eBlack Plate\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase Type:\u003c\/strong\u003e Ceramic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGetter Type:\u003c\/strong\u003e Leaf Getter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMade in:\u003c\/strong\u003e USA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBox Type:\u003c\/strong\u003e NOS in Original Box\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTested on:\u003c\/strong\u003e Amplitrex AT1000 Advanced Digital Tube Tester\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Archive Tubes","offers":[{"title":"Matched Pair (2 Tubes) \/ Archive Vault","offer_id":47945018343660,"sku":"APS-1397-1","price":1117.0,"currency_code":"USD","in_stock":true},{"title":"Matched Pair (2 Tubes) \/ Gold","offer_id":47945018376428,"sku":"APS-1397-2","price":1009.0,"currency_code":"USD","in_stock":true},{"title":"Matched Pair (2 Tubes) \/ Silver","offer_id":47945018409196,"sku":"APS-1397-3","price":937.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Archive Vault","offer_id":47945018441964,"sku":"APS-1397-4","price":2234.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Gold","offer_id":47945018474732,"sku":"APS-1397-5","price":2018.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Silver","offer_id":47945018507500,"sku":"APS-1397-6","price":1875.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Archive Vault","offer_id":47945018540268,"sku":"APS-1397-7","price":548.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Gold","offer_id":47945018573036,"sku":"APS-1397-8","price":494.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Silver","offer_id":47945018605804,"sku":"APS-1397-9","price":458.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0225\/2721\/3642\/files\/apos-audio-archive-tubes-vacuum-tube-western-electric-vt-25-nos-vacuum-tube-1253723660.jpg?v=1791585613"},{"product_id":"siemens-12ax7-ecc83-vacuum-tube","title":"Siemens 12AX7 (ECC83) NOS Vacuum Tube","description":"\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cspan\u003eSiemens ECC83 (12AX7) twin triode tubes were manufactured in West Germany by Siemens, one of Europe's leading electronic component manufacturers, during the second half of the 20th century. Produced for professional, industrial, and high-fidelity applications, Siemens ECC83 tubes earned a reputation for top-notch manufacturing quality and were widely used in broadcast, laboratory, and audio equipment. \u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eArchive Assessed, Apos Assured\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eAll Archive tubes are thoroughly tested, inspected, photographed, and inventoried, guaranteeing the quality of each tube that's shipped to customers. All tubes carry an Apos 12-month warranty against manufacturing defects. \u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eAre the tubes...dusty...?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cspan\u003eBecause these are genuine New Old Stock tubes, small cosmetic irregularities may be present. These aren't defects but artifacts of vintage manufacturing and decades of storage. They have no impact on reliability or sonic performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cspan data-sheets-root=\"1\"\u003eSpecs\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand \/ Type:\u003c\/strong\u003e Siemens ECC83\/ 12AX7\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGetter Type:\u003c\/strong\u003e Top Ring Getter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlate Type:\u003c\/strong\u003e Gray Plate\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBox Type:\u003c\/strong\u003e NOS in New Box\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMade in: \u003c\/b\u003eGermany\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTested on:\u003c\/strong\u003e Amplitrex AT1000 Advanced Digital Tube Tested\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Archive Tubes","offers":[{"title":"Matched Pair (2 Tubes) \/ Archive Vault","offer_id":47954213470444,"sku":"APS-1369-1","price":770.0,"currency_code":"USD","in_stock":true},{"title":"Matched Pair (2 Tubes) \/ Gold","offer_id":47954213503212,"sku":"APS-1369-2","price":695.0,"currency_code":"USD","in_stock":true},{"title":"Matched Pair (2 Tubes) \/ Silver","offer_id":47954213535980,"sku":"APS-1369-3","price":645.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Archive Vault","offer_id":47954213568748,"sku":"APS-1369-4","price":1540.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Gold","offer_id":47954213601516,"sku":"APS-1369-5","price":1390.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Silver","offer_id":47954213634284,"sku":"APS-1369-6","price":1290.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Archive Vault","offer_id":47954213667052,"sku":"APS-1369-7","price":375.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Gold","offer_id":47954213699820,"sku":"APS-1369-8","price":337.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Silver","offer_id":47954213732588,"sku":"APS-1369-9","price":312.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0225\/2721\/3642\/files\/apos-audio-archive-tubes-vacuum-tube-siemens-12ax7-ecc83-nos-vacuum-tube-1253723642.jpg?v=1791585494"},{"product_id":"bel-gz34-vacuum-tube","title":"BEL GZ34 NOS Vacuum Tube","description":"\u003cdiv class=\"\"\u003e\n\u003csection dir=\"auto\" class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" dir=\"auto\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003cdiv class=\"qMYqUG_convSearchResultHighlightRoot qMYqUG_convSearchResultTextHighlightSafari\"\u003e\n\u003cdiv class=\"\"\u003e\n\u003csection dir=\"auto\" class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" dir=\"auto\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003cdiv class=\"qMYqUG_convSearchResultHighlightRoot qMYqUG_convSearchResultTextHighlightSafari\"\u003e\n\u003cdiv class=\"\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv dir=\"auto\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003cp\u003e\u003cspan\u003eBEL GZ34 full-wave rectifier tubes were manufactured in India by Bharat Electronics Limited (BEL), one of the country's principal government-owned electronics manufacturers, during the latter half of the 20th century. Produced to European rectifier standards, the BEL GZ34 was developed for industrial, military, and high-fidelity applications that required reliable and well-regulated high-voltage power supplies. Each tube features the desirable top double ring getter and black base construction, with indirectly heated cathodes and dual-diode architecture characteristic of the GZ34 design. \u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003ch2\u003e\u003cstrong\u003eArchive Assessed, Apos Assured\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eAll Archive tubes are thoroughly tested, inspected, photographed, and inventoried, guaranteeing the quality of each tube that's shipped to customers. All tubes carry an Apos 12-month warranty against manufacturing defects.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eAre the tubes...dusty...?\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eBecause these are genuine New Old Stock tubes, small cosmetic irregularities may be present. These aren't defects but artifacts of vintage manufacturing and decades of storage. They have no impact on reliability or sonic performance.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eSpecs\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand \/ Type:\u003c\/strong\u003e BEL GZ34\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGetter Type:\u003c\/strong\u003e Top Double Ring Getter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase Type: \u003c\/strong\u003eBlack Base\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMade in:\u003c\/strong\u003e India\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBox Type:\u003c\/strong\u003e NOS in Original Box\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTested on:\u003c\/strong\u003e Amplitrex AT1000 Advanced Digital Tube Tester\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Archive Tubes","offers":[{"title":"Matched Pair (2 Tubes) \/ Archive Vault","offer_id":47954216452332,"sku":"APS-1368-1","price":430.0,"currency_code":"USD","in_stock":true},{"title":"Matched Pair (2 Tubes) \/ Gold","offer_id":47954216485100,"sku":"APS-1368-2","price":391.0,"currency_code":"USD","in_stock":true},{"title":"Matched Pair (2 Tubes) \/ Silver","offer_id":47954216517868,"sku":"APS-1368-3","price":365.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Archive Vault","offer_id":47954216550636,"sku":"APS-1368-4","price":860.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Gold","offer_id":47954216583404,"sku":"APS-1368-5","price":782.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Silver","offer_id":47954216616172,"sku":"APS-1368-6","price":730.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Archive Vault","offer_id":47954216648940,"sku":"APS-1368-7","price":205.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Gold","offer_id":47954216681708,"sku":"APS-1368-8","price":185.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Silver","offer_id":47954216714476,"sku":"APS-1368-9","price":172.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0225\/2721\/3642\/files\/apos-audio-archive-tubes-vacuum-tube-bel-gz34-nos-vacuum-tube-1253723634.jpg?v=1791585193"},{"product_id":"telefunken-ez81-6ca4-vacuum-tube","title":"Telefunken EZ81 (6CA4) NOS Vacuum Tube","description":"\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cspan\u003eProduced by Telefunken in West Germany during the golden age of European vacuum tube manufacturing, the EZ81 is a full-wave rectifier developed for audio amplifiers, radio receivers, and other high-fidelity power supplies. Telefunken's EZ81 earned a reputation for exceptional manufacturing consistency, and examples with Black Plate construction and the distinctive Top Ring Getter are among the most sought-after variants from the company's Berlin and Ulm production. \u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eArchive Assessed, Apos Assured\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eAll Archive tubes are thoroughly tested, inspected, photographed, and inventoried, guaranteeing the quality of each tube that's shipped to customers. All tubes carry an Apos 12-month warranty against manufacturing defects. \u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eAre the tubes...dusty...?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cspan\u003eBecause these are genuine New Old Stock tubes, small cosmetic irregularities may be present. These aren't defects but artifacts of vintage manufacturing and decades of storage. They have no impact on reliability or sonic performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cspan data-sheets-root=\"1\"\u003eSpecs\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand \/ Type:\u003c\/strong\u003e Telefunken EZ81\/ 6CA4\u003cstrong data-start=\"633\" data-end=\"643\"\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGetter Type:\u003c\/strong\u003e Top Ring Getter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlate Type:\u003c\/strong\u003e Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMade in: \u003c\/b\u003eGermany\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eBox Type: \u003c\/b\u003eNOS in New Box\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTested on:\u003c\/strong\u003e Amplitrex AT1000 Advanced Digital Tube Tested\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Archive Tubes","offers":[{"title":"Matched Pair (2 Tubes) \/ Archive Vault","offer_id":47972798431468,"sku":"APS-1370-1","price":357.0,"currency_code":"USD","in_stock":true},{"title":"Matched Pair (2 Tubes) \/ Gold","offer_id":47972798464236,"sku":"APS-1370-2","price":323.0,"currency_code":"USD","in_stock":true},{"title":"Matched Pair (2 Tubes) \/ Silver","offer_id":47972798497004,"sku":"APS-1370-3","price":301.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Archive Vault","offer_id":47972798529772,"sku":"APS-1370-4","price":715.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Gold","offer_id":47972798562540,"sku":"APS-1370-5","price":647.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Silver","offer_id":47972798595308,"sku":"APS-1370-6","price":602.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Archive Vault","offer_id":47972798628076,"sku":"APS-1370-7","price":168.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Gold","offer_id":47972798660844,"sku":"APS-1370-8","price":151.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Silver","offer_id":47972798693612,"sku":"APS-1370-9","price":140.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0225\/2721\/3642\/files\/apos-audio-archive-tubes-vacuum-tube-telefunken-ez81-6ca4-vacuum-tube-1253723587.jpg?v=1786369751"},{"product_id":"stc-cv391-5b-255m-vacuum-tube","title":"STC CV391 (5B\/255M) NOS Vacuum Tube","description":"\u003cdiv data-is-intersecting=\"true\" data-turn-id-container=\"request-WEB:aa5978b9-3b86-4678-a02b-8fc60ab44037-2\" class=\"\"\u003e\n\u003csection data-turn=\"assistant\" data-testid=\"conversation-turn-2\" data-turn-id-container=\"request-WEB:aa5978b9-3b86-4678-a02b-8fc60ab44037-2\" data-turn-id=\"request-WEB:aa5978b9-3b86-4678-a02b-8fc60ab44037-2\" dir=\"auto\" class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\" data-conversation-screenshot-content=\"\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-turn-start-message=\"true\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" data-message-model-slug=\"gpt-5-5\" dir=\"auto\" data-message-id=\"61d862b8-5844-4808-baff-ca3d2fe632ea\" data-message-author-role=\"assistant\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003cdiv class=\"qMYqUG_convSearchResultHighlightRoot qMYqUG_convSearchResultTextHighlightSafari\"\u003e\n\u003cdiv data-is-intersecting=\"true\" data-turn-id-container=\"request-WEB:c0812bd4-af2f-4283-93ae-e21330d72c29-4\" class=\"\"\u003e\n\u003csection data-turn=\"assistant\" data-testid=\"conversation-turn-2\" data-turn-id-container=\"request-WEB:c0812bd4-af2f-4283-93ae-e21330d72c29-4\" data-turn-id=\"request-WEB:c0812bd4-af2f-4283-93ae-e21330d72c29-4\" dir=\"auto\" class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\" data-conversation-screenshot-content=\"\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-turn-start-message=\"true\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" data-message-model-slug=\"gpt-5-5\" dir=\"auto\" data-message-id=\"239085b0-31b4-40cd-80cb-d2eec9bb8d8b\" data-message-author-role=\"assistant\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003cdiv class=\"qMYqUG_convSearchResultHighlightRoot qMYqUG_convSearchResultTextHighlightSafari\"\u003e\n\u003cdiv class=\"\" data-turn-id-container=\"request-WEB:78739712-89cd-4b2e-9e9f-03395acb850e-6\" data-is-intersecting=\"true\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-WEB:78739712-89cd-4b2e-9e9f-03395acb850e-6\" data-turn-id-container=\"request-WEB:78739712-89cd-4b2e-9e9f-03395acb850e-6\" data-testid=\"conversation-turn-2\" data-turn=\"assistant\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv data-conversation-screenshot-content=\"\" class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"0d9a18a5-4374-49f6-b7ca-08e42f5593f9\" dir=\"auto\" data-message-model-slug=\"gpt-5-5\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" data-turn-start-message=\"true\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003cp data-start=\"0\" data-end=\"1000\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\u003cspan\u003eThis CV391 (5B\/255M) was manufactured in England by Standard Telephones and Cables (STC) as a transmitting and power-amplifier vacuum tube for British government and industrial applications. Electrically similar to the 807 and 6L6 families, it boasts the rugged construction standards associated with British military and communications equipment. \u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003ch2\u003e\u003cstrong\u003eArchive Assessed, Apos Assured\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eAll Archive tubes are thoroughly tested, inspected, photographed, and inventoried, guaranteeing the quality of each tube that's shipped to customers. All tubes carry an Apos 12-month warranty against manufacturing defects.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eAre the tubes...dusty...?\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eBecause these are genuine New Old Stock tubes, small cosmetic irregularities may be present. These aren't defects but artifacts of vintage manufacturing and decades of storage. They have no impact on reliability or sonic performance.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eSpecs\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand \/ Type:\u003c\/strong\u003e STC CV391 (5B\/255M)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMilitary Grade: \u003c\/b\u003eYes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMade in:\u003c\/strong\u003e UK\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBox Type:\u003c\/strong\u003e NOS in New Box\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTested on:\u003c\/strong\u003e Amplitrex AT1000 Advanced Digital Tube Tester\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Archive Tubes","offers":[{"title":"Matched Pair (2 Tubes) \/ Archive Vault","offer_id":47977753542892,"sku":"APS-1388-1","price":188.0,"currency_code":"USD","in_stock":true},{"title":"Matched Pair (2 Tubes) \/ Gold","offer_id":47977753575660,"sku":"APS-1388-2","price":171.0,"currency_code":"USD","in_stock":true},{"title":"Matched Pair (2 Tubes) \/ Silver","offer_id":47977753608428,"sku":"APS-1388-3","price":160.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Archive Vault","offer_id":47977753641196,"sku":"APS-1388-4","price":376.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Gold","offer_id":47977753673964,"sku":"APS-1388-5","price":342.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Silver","offer_id":47977753706732,"sku":"APS-1388-6","price":320.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Archive Vault","offer_id":47977753739500,"sku":"APS-1388-7","price":84.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Gold","offer_id":47977753772268,"sku":"APS-1388-8","price":75.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Silver","offer_id":47977753805036,"sku":"APS-1388-9","price":70.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0225\/2721\/3642\/files\/apos-audio-archive-tubes-vacuum-tube-stc-cv391-5b-255m-vacuum-tube-1253723514.jpg?v=1786362911"},{"product_id":"bel-6201-vacuum-tube","title":"BEL 6201 NOS Vacuum Tube","description":"\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cspan\u003eBEL produced this tube in India as a high-reliability version of the ECC81\/12AT7 dual triode. Each tube features distinctive three-hole plates, a top ring getter, gold-plated pins, and original BEL-branded packaging. \u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eArchive Assessed, Apos Assured\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eAll Archive tubes are thoroughly tested, inspected, photographed, and inventoried, guaranteeing the quality of each tube that's shipped to customers. All tubes carry an Apos 12-month warranty against manufacturing defects.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eAre the tubes...dusty...?\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eBecause these are genuine New Old Stock tubes, small cosmetic irregularities may be present. These aren't defects but artifacts of vintage manufacturing and decades of storage. They have no impact on reliability or sonic performance.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eSpecs\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand \/ Type:\u003c\/strong\u003e BEL 6201\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGetter Type:\u003c\/strong\u003e Top Ring Getter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlate Type\u003c\/strong\u003e: 3-Hole Plate\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePin Type:\u003c\/strong\u003e Gold Pins\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMade in:\u003c\/strong\u003e India\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBox Type:\u003c\/strong\u003e NOS in Original Box\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTested on:\u003c\/strong\u003e Amplitrex AT1000 Advanced Digital Tube Tester\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Archive Tubes","offers":[{"title":"Matched Pair (2 Tubes) \/ Archive Vault","offer_id":47992177033452,"sku":"APS-1389-1","price":256.0,"currency_code":"USD","in_stock":true},{"title":"Matched Pair (2 Tubes) \/ Gold","offer_id":47992177066220,"sku":"APS-1389-2","price":234.0,"currency_code":"USD","in_stock":true},{"title":"Matched Pair (2 Tubes) \/ Silver","offer_id":47992177098988,"sku":"APS-1389-3","price":220.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Archive Vault","offer_id":47992177131756,"sku":"APS-1389-4","price":512.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Gold","offer_id":47992177164524,"sku":"APS-1389-5","price":468.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Silver","offer_id":47992177197292,"sku":"APS-1389-6","price":440.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Archive Vault","offer_id":47992177230060,"sku":"APS-1389-7","price":118.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Gold","offer_id":47992177262828,"sku":"APS-1389-8","price":107.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Silver","offer_id":47992177295596,"sku":"APS-1389-9","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0225\/2721\/3642\/files\/apos-audio-archive-tubes-vacuum-tube-bel-6201-vacuum-tube-1253723507.jpg?v=1786362674"},{"product_id":"gec-vt60-vacuum-tube","title":"GEC VT60 NOS Vacuum Tube","description":"\u003cdiv class=\"\"\u003e\n\u003csection dir=\"auto\" class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" dir=\"auto\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003cdiv class=\"qMYqUG_convSearchResultHighlightRoot qMYqUG_convSearchResultTextHighlightSafari\"\u003e\n\u003cdiv class=\"\"\u003e\n\u003csection dir=\"auto\" class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" dir=\"auto\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003cdiv class=\"qMYqUG_convSearchResultHighlightRoot qMYqUG_convSearchResultTextHighlightSafari\"\u003e\n\u003cdiv class=\"\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv dir=\"auto\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cspan\u003eThe GEC VT60 is a British-made, military-grade beam-power tetrode derived from the 807 and produced with a premium white ceramic base for improved insulation. Its ruggedized construction, double-leaf getter, and higher-grade materials distinguish it from standard commercial 807 variants and reflect GEC’s high engineering standards for military and industrial applications. \u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003ch2\u003e\u003cstrong\u003eArchive Assessed, Apos Assured\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eAll Archive tubes are thoroughly tested, inspected, photographed, and inventoried, guaranteeing the quality of each tube that's shipped to customers. All tubes carry an Apos 12-month warranty against manufacturing defects.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eAre the tubes...dusty...?\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eBecause these are genuine New Old Stock tubes, small cosmetic irregularities may be present. These aren't defects but artifacts of vintage manufacturing and decades of storage. They have no impact on reliability or sonic performance.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eSpecs\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand \/ Type:\u003c\/strong\u003e GEC VT60\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGetter Type:\u003c\/strong\u003e Double Leaf Getter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase Type: \u003c\/strong\u003eWhite Ceramic Base\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMade in:\u003c\/strong\u003e England\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBox Type:\u003c\/strong\u003e NOS in Original Box\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTested on:\u003c\/strong\u003e Amplitrex AT1000 Advanced Digital Tube Tester\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Archive Tubes","offers":[{"title":"Matched Pair (2 Tubes) \/ Archive Vault","offer_id":48020614971628,"sku":"APS-1396-1","price":634.0,"currency_code":"USD","in_stock":true},{"title":"Matched Pair (2 Tubes) \/ Gold","offer_id":48020615004396,"sku":"APS-1396-2","price":574.0,"currency_code":"USD","in_stock":true},{"title":"Matched Pair (2 Tubes) \/ Silver","offer_id":48020615037164,"sku":"APS-1396-3","price":535.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Archive Vault","offer_id":48020615069932,"sku":"APS-1396-4","price":1268.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Gold","offer_id":48020615102700,"sku":"APS-1396-5","price":1149.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Silver","offer_id":48020615135468,"sku":"APS-1396-6","price":1070.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Archive Vault","offer_id":48020615168236,"sku":"APS-1396-7","price":307.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Gold","offer_id":48020615201004,"sku":"APS-1396-8","price":277.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Silver","offer_id":48020615233772,"sku":"APS-1396-9","price":257.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0225\/2721\/3642\/files\/GECVT60_4.jpg?v=1785253110"},{"product_id":"marconi-osram-valve-co-vt25-det25-7312","title":"Marconi-Osram Valve Co. VT25 (DET25\/ 7312) NOS Vacuum Tube","description":"\u003cdiv class=\"\"\u003e\n\u003csection dir=\"auto\" class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" dir=\"auto\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003cdiv class=\"qMYqUG_convSearchResultHighlightRoot qMYqUG_convSearchResultTextHighlightSafari\"\u003e\n\u003cdiv class=\"\"\u003e\n\u003csection dir=\"auto\" class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" dir=\"auto\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003cdiv class=\"qMYqUG_convSearchResultHighlightRoot qMYqUG_convSearchResultTextHighlightSafari\"\u003e\n\u003cdiv class=\"\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv dir=\"auto\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cspan\u003eThis rare British DET25 \/ VT25 (Air Ministry designation 10E\/7312) directly heated transmitting triode was manufactured by M.O.V. (Marconi-Osram Valve Co.) on May 7, 1936, for military and professional radio service, including communications equipment associated with the Royal Air Force. Developed as a rugged high-voltage member of the Type 10 triode family, the DET25 features heavier internal construction and wider electrode spacing than typical American VT25 variants. \u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003ch2\u003e\u003cstrong\u003eArchive Assessed, Apos Assured\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eAll Archive tubes are thoroughly tested, inspected, photographed, and inventoried, guaranteeing the quality of each tube that's shipped to customers. All tubes carry an Apos 12-month warranty against manufacturing defects.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eAre the tubes...dusty...?\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eBecause these are genuine New Old Stock tubes, small cosmetic irregularities may be present. These aren't defects but artifacts of vintage manufacturing and decades of storage. They have no impact on reliability or sonic performance.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eSpecs\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand \/ Type:\u003c\/strong\u003e Marconi-Osram Valve Co. VT25 (DET25\/ 7312)\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMade in:\u003c\/strong\u003e England\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBox Type:\u003c\/strong\u003e NOS in Brown Military Box\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTested on:\u003c\/strong\u003e Amplitrex AT1000 Advanced Digital Tube Tester\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Archive Tubes","offers":[{"title":"Matched Pair (2 Tubes) \/ Archive Vault","offer_id":48020620083436,"sku":"APS-1398-1","price":2440.0,"currency_code":"USD","in_stock":true},{"title":"Matched Pair (2 Tubes) \/ Gold","offer_id":48020620116204,"sku":"APS-1398-2","price":2200.0,"currency_code":"USD","in_stock":true},{"title":"Matched Pair (2 Tubes) \/ Silver","offer_id":48020620148972,"sku":"APS-1398-3","price":2040.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Archive Vault","offer_id":48020620181740,"sku":"APS-1398-4","price":4880.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Gold","offer_id":48020620214508,"sku":"APS-1398-5","price":4400.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Silver","offer_id":48020620247276,"sku":"APS-1398-6","price":4080.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Archive Vault","offer_id":48020620280044,"sku":"APS-1398-7","price":1210.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Gold","offer_id":48020620312812,"sku":"APS-1398-8","price":1090.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Silver","offer_id":48020620345580,"sku":"APS-1398-9","price":1010.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0225\/2721\/3642\/files\/WhatsAppImage2026-07-28at11.11.34_1.jpg?v=1785257117"},{"product_id":"gec-ats25-za3496-vacuum-tube","title":"GEC ATS25 ZA3496 NOS Vacuum Tube","description":"\u003cdiv class=\"\"\u003e\n\u003csection dir=\"auto\" class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" dir=\"auto\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003cdiv class=\"qMYqUG_convSearchResultHighlightRoot qMYqUG_convSearchResultTextHighlightSafari\"\u003e\n\u003cdiv class=\"\"\u003e\n\u003csection dir=\"auto\" class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" dir=\"auto\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003cdiv class=\"qMYqUG_convSearchResultHighlightRoot qMYqUG_convSearchResultTextHighlightSafari\"\u003e\n\u003cdiv class=\"\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv dir=\"auto\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cspan\u003eManufactured in England by General Electric Co. (GEC), the ATS25 \/ ZA3496 heavy-duty power triode was produced to British government and military specifications. The ATS25 is distinguished by its rugged industrial construction and government procurement designation. \u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003ch2\u003e\u003cstrong\u003eArchive Assessed, Apos Assured\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eAll Archive tubes are thoroughly tested, inspected, photographed, and inventoried, guaranteeing the quality of each tube that's shipped to customers. All tubes carry an Apos 12-month warranty against manufacturing defects.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eAre the tubes...dusty...?\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eBecause these are genuine New Old Stock tubes, small cosmetic irregularities may be present. These aren't defects but artifacts of vintage manufacturing and decades of storage. They have no impact on reliability or sonic performance.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eSpecs\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand \/ Type:\u003c\/strong\u003e GEC ATS25 \/ ZA3496\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGetter Type:\u003c\/strong\u003e Leaf Getter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase Type: \u003c\/strong\u003eWhite Ceramic Base\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlate Type\u003c\/strong\u003e: Black Plate\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnection Type:\u003c\/strong\u003e Top Cap Connection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMilitary Grade:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMade in:\u003c\/strong\u003e England\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBox Type:\u003c\/strong\u003e NOS in Original Box\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTested on:\u003c\/strong\u003e Amplitrex AT1000 Advanced Digital Tube Tester\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Archive Tubes","offers":[{"title":"Matched Pair (2 Tubes) \/ Archive Vault","offer_id":48347092615404,"sku":"APS-1426-1","price":790.0,"currency_code":"USD","in_stock":true},{"title":"Matched Pair (2 Tubes) \/ Gold","offer_id":48347092648172,"sku":"APS-1426-2","price":715.0,"currency_code":"USD","in_stock":true},{"title":"Matched Pair (2 Tubes) \/ Silver","offer_id":48347092680940,"sku":"APS-1426-3","price":665.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Archive Vault","offer_id":48347092713708,"sku":"APS-1426-4","price":1580.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Gold","offer_id":48347092746476,"sku":"APS-1426-5","price":1430.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Silver","offer_id":48347092779244,"sku":"APS-1426-6","price":1330.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Archive Vault","offer_id":48347092812012,"sku":"APS-1426-7","price":385.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Gold","offer_id":48347092844780,"sku":"APS-1426-8","price":347.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Silver","offer_id":48347092877548,"sku":"APS-1426-9","price":322.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0225\/2721\/3642\/files\/apos-audio-archive-tubes-vacuum-tube-gec-ats25-za3496-nos-vacuum-tube-1258509439.jpg?v=1791584710"},{"product_id":"rca-jan-805-vt-143-vacuum-tube","title":"RCA JAN 805 VT-143 NOS Vacuum Tube","description":"\u003cdiv class=\"\"\u003e\n\u003csection dir=\"auto\" class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" dir=\"auto\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003cdiv class=\"qMYqUG_convSearchResultHighlightRoot qMYqUG_convSearchResultTextHighlightSafari\"\u003e\n\u003cdiv class=\"\"\u003e\n\u003csection dir=\"auto\" class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" dir=\"auto\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003cdiv class=\"qMYqUG_convSearchResultHighlightRoot qMYqUG_convSearchResultTextHighlightSafari\"\u003e\n\u003cdiv class=\"\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv dir=\"auto\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003cp\u003eRCA produced the 805, military designation VT-143, in the United States as a high-power transmitting triode for radio-frequency and audio-frequency service in commercial, military, and industrial equipment. The 805 became part of RCA’s transmitting-tube line, using a large clear-glass envelope and metal base construction suited to the high voltages and dissipation required in transmitter and amplifier circuits. \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003ch2\u003e\u003cstrong\u003eArchive Assessed, Apos Assured\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eAll Archive tubes are thoroughly tested, inspected, photographed, and inventoried, guaranteeing the quality of each tube that's shipped to customers. All tubes carry an Apos 12-month warranty against manufacturing defects.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eAre the tubes...dusty...?\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eBecause these are genuine New Old Stock tubes, small cosmetic irregularities may be present. These aren't defects but artifacts of vintage manufacturing and decades of storage. They have no impact on reliability or sonic performance.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eSpecs\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand \/ Type:\u003c\/strong\u003e GEC VT60\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGetter Type:\u003c\/strong\u003e Leaf Getter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase Type: \u003c\/strong\u003eMetal Base\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMade in:\u003c\/strong\u003e USA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBox Type:\u003c\/strong\u003e NOS in Original Box\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTested on:\u003c\/strong\u003e Amplitrex AT1000 Advanced Digital Tube Tester\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Archive Tubes","offers":[{"title":"Matched Pair (2 Tubes) \/ Archive Vault","offer_id":48347094417644,"sku":"APS-1427-1","price":2740.0,"currency_code":"USD","in_stock":true},{"title":"Matched Pair (2 Tubes) \/ Gold","offer_id":48347094450412,"sku":"APS-1427-2","price":2470.0,"currency_code":"USD","in_stock":true},{"title":"Matched Pair (2 Tubes) \/ Silver","offer_id":48347094483180,"sku":"APS-1427-3","price":2290.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Archive Vault","offer_id":48347094515948,"sku":"APS-1427-4","price":5480.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Gold","offer_id":48347094548716,"sku":"APS-1427-5","price":4940.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Silver","offer_id":48347094581484,"sku":"APS-1427-6","price":4580.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Archive Vault","offer_id":48347094614252,"sku":"APS-1427-7","price":1360.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Gold","offer_id":48347094647020,"sku":"APS-1427-8","price":1225.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Silver","offer_id":48347094679788,"sku":"APS-1427-9","price":1135.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0225\/2721\/3642\/files\/apos-audio-archive-tubes-vacuum-tube-rca-jan-805-vt-143-nos-vacuum-tube-1258517684.jpg?v=1791583990"},{"product_id":"hytron-5-1626-vt-137-vacuum-tube","title":"HYTRON 1626 VT-137 NOS Vacuum Tube","description":"\u003cdiv class=\"\"\u003e\n\u003csection dir=\"auto\" class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" dir=\"auto\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003cdiv class=\"qMYqUG_convSearchResultHighlightRoot qMYqUG_convSearchResultTextHighlightSafari\"\u003e\n\u003cdiv class=\"\"\u003e\n\u003csection dir=\"auto\" class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" dir=\"auto\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003cdiv class=\"qMYqUG_convSearchResultHighlightRoot qMYqUG_convSearchResultTextHighlightSafari\"\u003e\n\u003cdiv class=\"\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv dir=\"auto\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cspan\u003eHytron manufactured the 1626 (military designation VT-137) in the United States as a low-power directly heated triode for communications and related electronic equipment. Originally developed for military and communications service, the 1626 later became associated with low-power single-ended amplifier designs.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003ch2\u003e\u003cstrong\u003eArchive Assessed, Apos Assured\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eAll Archive tubes are thoroughly tested, inspected, photographed, and inventoried, guaranteeing the quality of each tube that's shipped to customers. All tubes carry an Apos 12-month warranty against manufacturing defects.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eAre the tubes...dusty...?\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eBecause these are genuine New Old Stock tubes, small cosmetic irregularities may be present. These aren't defects but artifacts of vintage manufacturing and decades of storage. They have no impact on reliability or sonic performance.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eSpecs\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand \/ Type:\u003c\/strong\u003e HYTRON 5.1626 VT-137\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGetter Type:\u003c\/strong\u003e Tin Cup Getter\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePlate Type: \u003c\/b\u003eBlack Plate\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMade in:\u003c\/strong\u003e USA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBox Type:\u003c\/strong\u003e NOS in Original Box\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTested on:\u003c\/strong\u003e Amplitrex AT1000 Advanced Digital Tube Tester\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Archive Tubes","offers":[{"title":"Matched Pair (2 Tubes) \/ Archive Vault","offer_id":48347098513644,"sku":"APS-1423-1","price":283.0,"currency_code":"USD","in_stock":true},{"title":"Matched Pair (2 Tubes) \/ Gold","offer_id":48347098546412,"sku":"APS-1423-2","price":258.0,"currency_code":"USD","in_stock":true},{"title":"Matched Pair (2 Tubes) \/ Silver","offer_id":48347098579180,"sku":"APS-1423-3","price":242.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Archive Vault","offer_id":48347098611948,"sku":"APS-1423-4","price":566.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Gold","offer_id":48347098644716,"sku":"APS-1423-5","price":517.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Silver","offer_id":48347098677484,"sku":"APS-1423-6","price":485.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Archive Vault","offer_id":48347098710252,"sku":"APS-1423-7","price":131.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Gold","offer_id":48347098743020,"sku":"APS-1423-8","price":119.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Silver","offer_id":48347098775788,"sku":"APS-1423-9","price":111.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0225\/2721\/3642\/files\/apos-audio-archive-tubes-vacuum-tube-hytron-1626-vt-137-nos-vacuum-tube-1258517673.jpg?v=1791583629"},{"product_id":"gec-px25-osram-vacuum-tube","title":"GEC PX25 OSRAM NOS Vacuum Tube","description":"\u003cdiv class=\"\"\u003e\n\u003csection dir=\"auto\" class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" dir=\"auto\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003cdiv class=\"qMYqUG_convSearchResultHighlightRoot qMYqUG_convSearchResultTextHighlightSafari\"\u003e\n\u003cdiv class=\"\"\u003e\n\u003csection dir=\"auto\" class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" dir=\"auto\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003cdiv class=\"qMYqUG_convSearchResultHighlightRoot qMYqUG_convSearchResultTextHighlightSafari\"\u003e\n\u003cdiv class=\"\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv dir=\"auto\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cspan\u003eThe GEC PX25 OSRAM power triode was produced for the British Government as high-tension military valves, with original GVT packaging and Broad Arrow markings identifying official government issue. The VR40 designation reflects the military classification of the PX25-type directly heated power triode, a valve developed for high-power amplification applications. \u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003ch2\u003e\u003cstrong\u003eArchive Assessed, Apos Assured\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eAll Archive tubes are thoroughly tested, inspected, photographed, and inventoried, guaranteeing the quality of each tube that's shipped to customers. All tubes carry an Apos 12-month warranty against manufacturing defects.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eAre the tubes...dusty...?\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eBecause these are genuine New Old Stock tubes, small cosmetic irregularities may be present. These aren't defects but artifacts of vintage manufacturing and decades of storage. They have no impact on reliability or sonic performance.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eSpecs\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand \/ Type:\u003c\/strong\u003e GEC PX25 OSRAM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMarking Type: \u003c\/strong\u003eBroad Arrow Marked \u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMilitary Grade: \u003c\/b\u003eYes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMade in:\u003c\/strong\u003e UK\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBox Type:\u003c\/strong\u003e NOS in Original Box\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTested on:\u003c\/strong\u003e AVO Type 160\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Archive Tubes","offers":[{"title":"Matched Pair (2 Tubes) \/ Archive Vault","offer_id":48347105165548,"sku":"APS-1424-1","price":2530.0,"currency_code":"USD","in_stock":true},{"title":"Matched Pair (2 Tubes) \/ Gold","offer_id":48347105198316,"sku":"APS-1424-2","price":2281.0,"currency_code":"USD","in_stock":true},{"title":"Matched Pair (2 Tubes) \/ Silver","offer_id":48347105231084,"sku":"APS-1424-3","price":2115.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Archive Vault","offer_id":48347105263852,"sku":"APS-1424-4","price":5060.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Gold","offer_id":48347105296620,"sku":"APS-1424-5","price":4562.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Silver","offer_id":48347105329388,"sku":"APS-1424-6","price":4230.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Archive Vault","offer_id":48347105362156,"sku":"APS-1424-7","price":1255.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Gold","offer_id":48347105394924,"sku":"APS-1424-8","price":1130.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Silver","offer_id":48347105427692,"sku":"APS-1424-9","price":1047.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0225\/2721\/3642\/files\/apos-audio-archive-tubes-vacuum-tube-gec-px25-osram-nos-vacuum-tube-1258517679.jpg?v=1791583332"},{"product_id":"mullard-e180f-6688-nos-vacuum-tube","title":"MULLARD E180F (6688) NOS Vacuum Tube","description":"\u003cdiv class=\"\"\u003e\n\u003csection dir=\"auto\" class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" dir=\"auto\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003cdiv class=\"qMYqUG_convSearchResultHighlightRoot qMYqUG_convSearchResultTextHighlightSafari\"\u003e\n\u003cdiv class=\"\"\u003e\n\u003csection dir=\"auto\" class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" dir=\"auto\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003cdiv class=\"qMYqUG_convSearchResultHighlightRoot qMYqUG_convSearchResultTextHighlightSafari\"\u003e\n\u003cdiv class=\"\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv dir=\"auto\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cspan\u003eThe Mullard E180F, also known by its American designation 6688, is a special-quality miniature pentode developed for wideband amplification in professional electronic equipment. Its design boasts extended operating life, vibration resistance, and precise electrical characteristics. Built on a nine-pin B9A base, it uses a 6.3V, 300mA heater and provides a nominal transconductance of 16.5mA\/V for high-frequency amplifier applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003ch2\u003e\u003cstrong\u003eArchive Assessed, Apos Assured\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eAll Archive tubes are thoroughly tested, inspected, photographed, and inventoried, guaranteeing the quality of each tube that's shipped to customers. All tubes carry an Apos 12-month warranty against manufacturing defects.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eAre the tubes...dusty...?\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eBecause these are genuine New Old Stock tubes, small cosmetic irregularities may be present. These aren't defects but artifacts of vintage manufacturing and decades of storage. 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Closely related to the 12AU7, the 5814A was designed to withstand shock, vibration, and prolonged operation under cutoff conditions, reflecting the reliability requirements of mid-century electronic equipment. \u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eArchive Assessed, Apos Assured\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eAll Archive tubes are thoroughly tested, inspected, photographed, and inventoried, guaranteeing the quality of each tube that's shipped to customers. All tubes carry an Apos 12-month warranty against manufacturing defects.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eAre the tubes...dusty...?\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eBecause these are genuine New Old Stock tubes, small cosmetic irregularities may be present. These aren't defects but artifacts of vintage manufacturing and decades of storage. They have no impact on reliability or sonic performance.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eSpecs\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand \/ Type:\u003c\/strong\u003e GE 5814A \/ 12AU7 \/ ECC82\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGetter Type:\u003c\/strong\u003e Top \"O\" Getter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlate Type:\u003c\/strong\u003e Black Plate\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMade in:\u003c\/strong\u003e USA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBox Type:\u003c\/strong\u003e NOS in New White Box\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTested on:\u003c\/strong\u003e Hickock 752A Tube Tester\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Archive Tubes","offers":[{"title":"Matched Pair (2 Tubes) \/ Archive Vault","offer_id":67756709708012,"sku":"APS-1457-1","price":256.0,"currency_code":"USD","in_stock":true},{"title":"Matched Pair (2 Tubes) \/ Gold","offer_id":67756709740780,"sku":"APS-1457-2","price":234.0,"currency_code":"USD","in_stock":true},{"title":"Matched Pair (2 Tubes) \/ Silver","offer_id":67756709773548,"sku":"APS-1457-3","price":220.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Archive Vault","offer_id":67756709806316,"sku":"APS-1457-4","price":512.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Gold","offer_id":67756709839084,"sku":"APS-1457-5","price":468.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Silver","offer_id":67756709871852,"sku":"APS-1457-6","price":440.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Archive Vault","offer_id":67756709904620,"sku":"APS-1457-7","price":118.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Gold","offer_id":67756709937388,"sku":"APS-1457-8","price":107.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Silver","offer_id":67756709970156,"sku":"APS-1457-9","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0225\/2721\/3642\/files\/ID2A9628.jpg?v=1792167227"},{"product_id":"archive-tubes-6h2n-6n2p-ecc83-nos-vacuum-tube","title":"Archive Tubes 6N2P (6H2N \/ ECC83)  NOS Vacuum Tube","description":"\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cspan\u003eMade in Russia, the 6N2P (6Н2П, sometimes rendered as 6H2N) is a miniature dual triode designed for low-frequency amplification. It belongs to the Soviet tube family commonly compared with the ECC83\/12AX7, although its heater wiring and internal screen distinguish it electrically. Its glass envelope houses two triode sections with a nominal amplification factor of 97.5 and a 6.3V, 340mA heater; the different pin connections mean it requires an appropriate adapter or circuit modification for use in an ECC83 socket.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eArchive Assessed, Apos Assured\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eAll Archive tubes are thoroughly tested, inspected, photographed, and inventoried, guaranteeing the quality of each tube that's shipped to customers. All tubes carry an Apos 12-month warranty against manufacturing defects.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eAre the tubes...dusty...?\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eBecause these are genuine New Old Stock tubes, small cosmetic irregularities may be present. 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They have no impact on reliability or sonic performance.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eSpecs\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand \/ Type:\u003c\/strong\u003e 6N2P\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGetter Type:\u003c\/strong\u003e Disc Getter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMade in:\u003c\/strong\u003e USSR\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBox Type:\u003c\/strong\u003e NOS in Original Box\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTested on:\u003c\/strong\u003e Amplitrex AT1000 Tube Tester\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Archive Tubes","offers":[{"title":"Matched Pair (2 Tubes) \/ Archive Vault","offer_id":67756741394668,"sku":"APS-1458-1","price":112.0,"currency_code":"USD","in_stock":true},{"title":"Matched Pair (2 Tubes) \/ Gold","offer_id":67756741427436,"sku":"APS-1458-2","price":104.0,"currency_code":"USD","in_stock":true},{"title":"Matched Pair (2 Tubes) \/ Silver","offer_id":67756741460204,"sku":"APS-1458-3","price":100.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Archive Vault","offer_id":67756741492972,"sku":"APS-1458-4","price":224.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Gold","offer_id":67756741525740,"sku":"APS-1458-5","price":209.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Silver","offer_id":67756741558508,"sku":"APS-1458-6","price":200.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Archive Vault","offer_id":67756741591276,"sku":"APS-1458-7","price":46.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Gold","offer_id":67756741624044,"sku":"APS-1458-8","price":42.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Silver","offer_id":67756741656812,"sku":"APS-1458-9","price":40.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0225\/2721\/3642\/files\/ID2A9294.jpg?v=1792169175"},{"product_id":"archive-tubes-6h1n-6n1p-nos-vacuum-tube","title":"Archive Tubes 6N1P (6H1N) NOS Vacuum Tube","description":"\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cspan\u003eMade in Russia, the 6N1P (6Н1П, sometimes rendered as 6H1N) is a miniature dual triode designed for low-frequency amplification and audio driver stages. Its design incorporates an internal shield between the two triode sections, allowing them to operate at different signal levels with reduced interaction. Housed in a nine-pin glass envelope, it uses a 6.3V, 600mA heater; its heater requirements and operating characteristics should be checked before substitution in circuits designed for the ECC88\/6DJ8 family.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eArchive Assessed, Apos Assured\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eAll Archive tubes are thoroughly tested, inspected, photographed, and inventoried, guaranteeing the quality of each tube that's shipped to customers. All tubes carry an Apos 12-month warranty against manufacturing defects.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eAre the tubes...dusty...?\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eBecause these are genuine New Old Stock tubes, small cosmetic irregularities may be present. These aren't defects but artifacts of vintage manufacturing and decades of storage. They have no impact on reliability or sonic performance.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eSpecs\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand \/ Type:\u003c\/strong\u003e 6N1P \/ 6H1N\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGetter Type:\u003c\/strong\u003e Plate Getter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMade in:\u003c\/strong\u003e USSR\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBox Type:\u003c\/strong\u003e NOS in Original Box\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTested on:\u003c\/strong\u003e Amplitrex AT1000 Tube Tester\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Archive Tubes","offers":[{"title":"Matched Pair (2 Tubes) \/ Archive Vault","offer_id":67756757483756,"sku":"APS-1459-1","price":112.0,"currency_code":"USD","in_stock":true},{"title":"Matched Pair (2 Tubes) \/ Gold","offer_id":67756757516524,"sku":"APS-1459-2","price":104.0,"currency_code":"USD","in_stock":true},{"title":"Matched Pair (2 Tubes) \/ Silver","offer_id":67756757549292,"sku":"APS-1459-3","price":100.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Archive Vault","offer_id":67756757582060,"sku":"APS-1459-4","price":224.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Gold","offer_id":67756757614828,"sku":"APS-1459-5","price":209.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Silver","offer_id":67756757647596,"sku":"APS-1459-6","price":200.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Archive Vault","offer_id":67756757680364,"sku":"APS-1459-7","price":46.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Gold","offer_id":67756757713132,"sku":"APS-1459-8","price":42.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Silver","offer_id":67756757745900,"sku":"APS-1459-9","price":40.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0225\/2721\/3642\/files\/ID2A9306.jpg?v=1792170046"},{"product_id":"siemens-e180f-6688-nos-vacuum-tube","title":"Siemens E180F (6688) NOS Vacuum Tube","description":"\u003cp data-pm-slice=\"1 1 []\"\u003e\u003cspan\u003eThe Siemens E180F, also known as the 6688, is a special-quality miniature pentode developed for wideband amplification. 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