{"product_id":"sylvania-6sl7gt-military-grade-nos-vacuum-tube","title":"Sylvania 6SL7GT Military Grade NOS Vacuum Tube","description":"\u003cp data-pm-slice=\"1 1 []\"\u003e\u003cspan\u003eThe Sylvania 6SL7GT-JAN is an American-made, high-amplification dual triode manufactured for military procurement under the Joint Army-Navy tube standardization program. The 6SL7GT was documented in Sylvania’s wartime technical literature by 1943, with two independent triode sections in one envelope for voltage amplification and phase-inverter circuits. Its glass envelope and eight-pin octal base house electrically separate cathodes, with a 6.3-volt, 0.3-amp heater and a nominal amplification factor of 70 per section.\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 6SL7GT \/ VT-229\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase Type:\u003c\/strong\u003e Black Base\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGetter Type: \u003c\/strong\u003eLeaf Getter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMade in: \u003c\/strong\u003eUSA\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\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Archive Tubes","offers":[{"title":"Matched Pair (2 Tubes) \/ Archive Vault","offer_id":67983853846764,"sku":"APS-1791-1","price":506.0,"currency_code":"USD","in_stock":true},{"title":"Matched Pair (2 Tubes) \/ Gold","offer_id":67983853879532,"sku":"APS-1791-2","price":457.0,"currency_code":"USD","in_stock":true},{"title":"Matched Pair (2 Tubes) \/ Silver","offer_id":67983853912300,"sku":"APS-1791-3","price":425.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Archive Vault","offer_id":67983853945068,"sku":"APS-1791-4","price":1012.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Gold","offer_id":67983853977836,"sku":"APS-1791-5","price":914.0,"currency_code":"USD","in_stock":true},{"title":"Matched Quad (4 Tubes) \/ Silver","offer_id":67983854010604,"sku":"APS-1791-6","price":850.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Archive Vault","offer_id":67983854043372,"sku":"APS-1791-7","price":243.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Gold","offer_id":67983854076140,"sku":"APS-1791-8","price":218.0,"currency_code":"USD","in_stock":true},{"title":"Singles  (1 Tube) \/ Silver","offer_id":67983854108908,"sku":"APS-1791-9","price":202.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0225\/2721\/3642\/files\/ID2A9468.jpg?v=1793207985","url":"https:\/\/apos.audio\/products\/sylvania-6sl7gt-military-grade-nos-vacuum-tube","provider":"Apos","version":"1.0","type":"link"}