{"product_id":"single-clear-glass-tung-sol-6sl7","title":"6SL7  - SINGLE - Tung-Sol- Clear Glass","description":"\u003ch2\u003e\n\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cem\u003e\u003cb\u003eNotice crack in photo - tube still tests very strong\u003c\/b\u003e\u003c\/em\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cem\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/em\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003cstrong\u003eTest on TV-7\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003cstrong\u003e55\/32\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003cstrong\u003e52\/32\u003c\/strong\u003e\u003c\/span\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eTung-Sol 6SL7GT\u003c\/b\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eClear glass envelope\u003c\/li\u003e\n\u003cli\u003eBlack base\u003c\/li\u003e\n\u003cli\u003eWhite painted \u003cb\u003e“TUNG-SOL – MADE IN U.S.A.”\u003c\/b\u003e\u003cb\u003e\u003c\/b\u003e\n\u003c\/li\u003e\n\u003cli\u003eOctagonal \u003cb\u003e6SL7 GT\u003c\/b\u003e etch visible inside\u003c\/li\u003e\n\u003cli\u003eRed factory ink on the top mica (classic Tung-Sol marking)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis places it in the \u003cb\u003eearly–mid 1940s\u003c\/b\u003e, same general family as your clear-glass Tung-Sol pair, and \u003ci\u003ewell before\u003c\/i\u003e later 1950s production.\u003c\/p\u003e\n\u003cp\u003eFrom the photos:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eLarge rectangular Tung-Sol plates\u003c\/b\u003e\u003cb\u003e\u003c\/b\u003e\n\u003c\/li\u003e\n\u003cli\u003eHeavy grid supports\u003c\/li\u003e\n\u003cli\u003eThick top and bottom mica\u003c\/li\u003e\n\u003cli\u003eRed inspection lacquer on the top mica\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is \u003cb\u003ereal Tung-Sol tooling\u003c\/b\u003e, not a rebrand or second-source tube. Sonically, when healthy, these are known for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eStrong dynamics\u003c\/li\u003e\n\u003cli\u003eBold midrange\u003c\/li\u003e\n\u003cli\u003eExcellent drive capability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003e❗\u003c\/span\u003e\u003cb\u003e Cracked base\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eSonic expectations (if electrically healthy)\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eExpect:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eClassic Tung-Sol punch and drive\u003c\/li\u003e\n\u003cli\u003eSlightly more openness than black-glass versions\u003c\/li\u003e\n\u003cli\u003eVery engaging midrange\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003ePriced low to allow you to get real vintage Tung-Sol sound at an unbelievable price!\u003c\/p\u003e","brand":"Bespoke Audio Shop","offers":[{"title":"Default Title","offer_id":53293170819438,"sku":"BSA-6","price":49.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0977\/2721\/8030\/files\/BSA-6a.jpg?v=1770694729","url":"https:\/\/bespoke-audio-shop.myshopify.com\/products\/single-clear-glass-tung-sol-6sl7","provider":"Bespoke Audio Shop","version":"1.0","type":"link"}