{"product_id":"telefunken-6l6gc-tk-vacuum-tube-single-black-diamond-series-vacuum-tubes","title":"TELEFUNKEN 6L6GC-TK Vacuum Tube Single","description":"\u003cdiv style=\"font-family:'Helvetica Neue',Arial,sans-serif;color:#1A1A2A;max-width:900px;margin:0 auto;line-height:1.6;font-size:15px;\"\u003e\n\u003ch3 style=\"font-size:17px;font-weight:700;color:#0D1B3E;text-transform:uppercase;letter-spacing:.06em;margin:4px 0 12px;padding:0 0 7px;border-bottom:2px solid #006D77;\"\u003eProduct overview\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 16px;font-size:16.5px;color:#0D1B3E;\"\u003eThe \u003cstrong\u003eTELEFUNKEN 6L6GC-TK Vacuum Tube Single\u003c\/strong\u003e is the Black Diamond Series 6L6GC, an octal power tube with tight lows and a shimmering high end, supplied here as a single 6L6GC-TK tube.\u003c\/p\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eThe TELEFUNKEN 6L6GC-TK has tight and defined lows, transparent mids and a shimmering high end. Installed in an amplifier, these octal power tubes offer a focused bite with well-defined articulation.\u003c\/p\u003e\n\u003ctable style=\"border-collapse:collapse;margin:6px 0 18px;width:100%;max-width:100%;table-layout:fixed;\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:12px 8px;text-align:left;border:1px solid #DDE2E8;vertical-align:top;word-break:normal;overflow-wrap:break-word;width:55%;color:#5a6170;font-size:13px;text-transform:uppercase;letter-spacing:.05em;\"\u003eOctal power tube\u003c\/td\u003e\n\u003ctd style=\"padding:12px 8px;text-align:left;border:1px solid #DDE2E8;vertical-align:top;word-break:normal;overflow-wrap:break-word;font-weight:bold;color:#006d77;font-size:17px;\"\u003e6L6GC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:12px 8px;text-align:left;border:1px solid #DDE2E8;vertical-align:top;word-break:normal;overflow-wrap:break-word;width:55%;color:#5a6170;font-size:13px;text-transform:uppercase;letter-spacing:.05em;\"\u003e6L6 introduced\u003c\/td\u003e\n\u003ctd style=\"padding:12px 8px;text-align:left;border:1px solid #DDE2E8;vertical-align:top;word-break:normal;overflow-wrap:break-word;font-weight:bold;color:#006d77;font-size:17px;\"\u003e1936\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:12px 8px;text-align:left;border:1px solid #DDE2E8;vertical-align:top;word-break:normal;overflow-wrap:break-word;width:55%;color:#5a6170;font-size:13px;text-transform:uppercase;letter-spacing:.05em;\"\u003eTube in this product\u003c\/td\u003e\n\u003ctd style=\"padding:12px 8px;text-align:left;border:1px solid #DDE2E8;vertical-align:top;word-break:normal;overflow-wrap:break-word;font-weight:bold;color:#006d77;font-size:17px;\"\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:12px 8px;text-align:left;border:1px solid #DDE2E8;vertical-align:top;word-break:normal;overflow-wrap:break-word;width:55%;color:#5a6170;font-size:13px;text-transform:uppercase;letter-spacing:.05em;\"\u003eTreated, tested and burned‑in\u003c\/td\u003e\n\u003ctd style=\"padding:12px 8px;text-align:left;border:1px solid #DDE2E8;vertical-align:top;word-break:normal;overflow-wrap:break-word;font-weight:bold;color:#006d77;font-size:17px;\"\u003eCryogenic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3 style=\"font-size:17px;font-weight:700;color:#0D1B3E;text-transform:uppercase;letter-spacing:.06em;margin:30px 0 12px;padding:0 0 7px;border-bottom:2px solid #006D77;\"\u003eKey features\u003c\/h3\u003e\n\u003cul style=\"margin:0 0 14px;padding-left:20px;\"\u003e\n\u003cli style=\"margin:0 0 6px;\"\u003e\n\u003cstrong\u003e6L6GC octal power tube\u003c\/strong\u003e (power tetrode)\u003c\/li\u003e\n\u003cli style=\"margin:0 0 6px;\"\u003e\n\u003cstrong\u003eTight, defined lows\u003c\/strong\u003e, transparent mids and a shimmering high end\u003c\/li\u003e\n\u003cli style=\"margin:0 0 6px;\"\u003e\n\u003cstrong\u003eFocused bite\u003c\/strong\u003e with well-defined articulation\u003c\/li\u003e\n\u003cli style=\"margin:0 0 6px;\"\u003e\u003cstrong\u003eTop-end sparkle and clean headroom\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0 0 6px;\"\u003e\n\u003cstrong\u003eBreaks up later\u003c\/strong\u003e than the EL34 and EL84\u003c\/li\u003e\n\u003cli style=\"margin:0 0 6px;\"\u003e\n\u003cstrong\u003eBlack Diamond Series\u003c\/strong\u003e: rigorously tested, cryogenically treated and extensively burned-in\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"font-size:17px;font-weight:700;color:#0D1B3E;text-transform:uppercase;letter-spacing:.06em;margin:30px 0 12px;padding:0 0 7px;border-bottom:2px solid #006D77;\"\u003eThe 6L6GC-TK sound\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eIntroduced in 1936 as the first power tetrode, the 6L6 is most associated with American sounding amplifiers, and its modern version, the 6L6GC, dominates the guitar amplifier market. In comparison with the EL34 and EL84, the 6L6 tends not to break up as quickly.\u003c\/p\u003e\n\u003ch3 style=\"font-size:17px;font-weight:700;color:#0D1B3E;text-transform:uppercase;letter-spacing:.06em;margin:30px 0 12px;padding:0 0 7px;border-bottom:2px solid #006D77;\"\u003eA long-running design\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eWith its top-end sparkle and clean headroom, there is a reason the 6L6 has had one of the longest active lifetimes of any electronic component. The Black Diamond Series 6L6GC-TK carries that character in a newly produced, cryogenically treated tube.\u003c\/p\u003e\n\u003ch3 style=\"font-size:17px;font-weight:700;color:#0D1B3E;text-transform:uppercase;letter-spacing:.06em;margin:30px 0 12px;padding:0 0 7px;border-bottom:2px solid #006D77;\"\u003eApplications\u003c\/h3\u003e\n\u003cul style=\"margin:0 0 14px;padding-left:20px;\"\u003e\n\u003cli style=\"margin:0 0 6px;\"\u003e\n\u003cstrong\u003eTwo-tube guitar amplifier\u003c\/strong\u003e: guitar amplifiers with a pair of 6L6GC power tubes, for clean headroom\u003c\/li\u003e\n\u003cli style=\"margin:0 0 6px;\"\u003e\n\u003cstrong\u003eFour-tube guitar amplifier\u003c\/strong\u003e: larger guitar amplifiers with four 6L6GC power tubes\u003c\/li\u003e\n\u003cli style=\"margin:0 0 6px;\"\u003e\n\u003cstrong\u003eClean stage tone\u003c\/strong\u003e: players who want sparkle and clean headroom on stage\u003c\/li\u003e\n\u003cli style=\"margin:0 0 6px;\"\u003e\n\u003cstrong\u003eStudio backline\u003c\/strong\u003e: studios keeping their 6L6GC amplifiers session-ready\u003c\/li\u003e\n\u003cli style=\"margin:0 0 6px;\"\u003e\n\u003cstrong\u003eLive sound and touring spares\u003c\/strong\u003e: backline techs carrying replacement power tubes\u003c\/li\u003e\n\u003cli style=\"margin:0 0 6px;\"\u003e\n\u003cstrong\u003eRental inventory\u003c\/strong\u003e: rental stores retubing amplifiers between bookings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"font-size:17px;font-weight:700;color:#0D1B3E;text-transform:uppercase;letter-spacing:.06em;margin:30px 0 12px;padding:0 0 7px;border-bottom:2px solid #006D77;\"\u003eBlack Diamond Series\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eTELEFUNKEN Elektroakustik Black Diamond Series vacuum tubes are new production tubes, manufactured in partnership with a specialist vacuum tube factory in Slovakia and designed to be harmonically rich and tonally balanced. Each tube is rigorously tested, cryogenically treated and extensively burned-in before it carries the Black Diamond name, so the 6L6GC-TK arrives ready for the most demanding applications.\u003c\/p\u003e\n\u003ch3 style=\"font-size:17px;font-weight:700;color:#0D1B3E;text-transform:uppercase;letter-spacing:.06em;margin:30px 0 12px;padding:0 0 7px;border-bottom:2px solid #006D77;\"\u003eThis configuration: Single\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eThis product is one 6L6GC-TK tube, sold singly.\u003c\/p\u003e\n\u003ch3 style=\"font-size:17px;font-weight:700;color:#0D1B3E;text-transform:uppercase;letter-spacing:.06em;margin:30px 0 12px;padding:0 0 7px;border-bottom:2px solid #006D77;\"\u003eFitting and care\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eAlways switch the equipment off, unplug it from the mains and let the tubes cool completely before removing or fitting a tube. Fit the 6L6GC-TK only in a socket specified for the 6L6GC, keep each tube in the position of the one it replaces, and press it straight and fully into the socket. Power sections hold high voltages, so leave any work inside the chassis, including any bias adjustment the amplifier requires, to a qualified technician. After fitting, let the equipment warm up and listen at low volume first. Store spare tubes in their packaging, protected from knocks and moisture.\u003c\/p\u003e\n\u003ch3 style=\"font-size:17px;font-weight:700;color:#0D1B3E;text-transform:uppercase;letter-spacing:.06em;margin:30px 0 12px;padding:0 0 7px;border-bottom:2px solid #006D77;\"\u003eWhat's included\u003c\/h3\u003e\n\u003ctable style=\"border-collapse:collapse;margin:0 0 14px;font-size:14px;width:100%;max-width:100%;table-layout:fixed;\"\u003e\u003ctbody\u003e\n\u003ctr style=\"background:#F5F7F9;\"\u003e\n\u003ctd style=\"font-weight:600;color:#0D1B3E;padding:8px 10px;border-bottom:1px solid #DDE2E8;vertical-align:top;word-break:normal;overflow-wrap:break-word;width:38%;\"\u003eIncluded\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px;border-bottom:1px solid #DDE2E8;vertical-align:top;word-break:normal;overflow-wrap:break-word;\"\u003eOne TELEFUNKEN 6L6GC‑TK vacuum tube\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"font-weight:600;color:#0D1B3E;padding:8px 10px;border-bottom:1px solid #DDE2E8;vertical-align:top;word-break:normal;overflow-wrap:break-word;width:38%;\"\u003eNot included\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px;border-bottom:1px solid #DDE2E8;vertical-align:top;word-break:normal;overflow-wrap:break-word;\"\u003eAmplifier or equipment, sockets and installation, bias adjustment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3 style=\"font-size:17px;font-weight:700;color:#0D1B3E;text-transform:uppercase;letter-spacing:.06em;margin:30px 0 12px;padding:0 0 7px;border-bottom:2px solid #006D77;\"\u003eIn the box\u003c\/h3\u003e\n\u003cul style=\"margin:0 0 14px;padding-left:20px;\"\u003e\u003cli style=\"margin:0 0 6px;\"\u003eOne TELEFUNKEN 6L6GC-TK vacuum tube\u003c\/li\u003e\u003c\/ul\u003e\n\u003cp style=\"margin:10px 0 14px;padding:10px 14px;background:#F5F7F9;border-left:3px solid #006D77;font-size:14px;color:#1A1A2A;\"\u003eVacuum tubes are glass components: handle them by the glass envelope, avoid knocks and keep them in their packaging until fitting.\u003c\/p\u003e\n\u003ch3 style=\"font-size:17px;font-weight:700;color:#0D1B3E;text-transform:uppercase;letter-spacing:.06em;margin:30px 0 12px;padding:0 0 7px;border-bottom:2px solid #006D77;\"\u003eTELEFUNKEN 6L6GC-TK Vacuum Tube Single: frequently asked questions\u003c\/h3\u003e\n\u003ch4 style=\"font-size:15px;font-weight:700;color:#0D1B3E;margin:18px 0 6px;\"\u003eHow does the 6L6GC-TK sound?\u003c\/h4\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eTELEFUNKEN describes tight and defined lows, transparent mids and a shimmering high end, with a focused bite and well-defined articulation.\u003c\/p\u003e\n\u003ch4 style=\"font-size:15px;font-weight:700;color:#0D1B3E;margin:18px 0 6px;\"\u003eHow does it compare with an EL34?\u003c\/h4\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eTELEFUNKEN notes that the 6L6 tends not to break up as quickly as the EL34 and EL84, with top-end sparkle and clean headroom.\u003c\/p\u003e\n\u003ch4 style=\"font-size:15px;font-weight:700;color:#0D1B3E;margin:18px 0 6px;\"\u003eWhat does Black Diamond Series mean?\u003c\/h4\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eIt is TELEFUNKEN Elektroakustik's range of new production vacuum tubes, designed to be harmonically rich and tonally balanced; each tube is rigorously tested, cryogenically treated and extensively burned-in.\u003c\/p\u003e\n\u003ch4 style=\"font-size:15px;font-weight:700;color:#0D1B3E;margin:18px 0 6px;\"\u003eDo I need a technician to fit it?\u003c\/h4\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eFitting is a straight swap in the socket, but power sections and rectifier circuits hold high voltages. Where an amplifier has adjustable bias, have a qualified technician check it after fitting new power tubes, following the amplifier maker's instructions.\u003c\/p\u003e\n\u003ch4 style=\"font-size:15px;font-weight:700;color:#0D1B3E;margin:18px 0 6px;\"\u003eHow many tubes are included?\u003c\/h4\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eOne tube, sold singly.\u003c\/p\u003e\n\u003ch4 style=\"font-size:15px;font-weight:700;color:#0D1B3E;margin:18px 0 6px;\"\u003eWhere can I buy the TELEFUNKEN 6L6GC-TK Vacuum Tube Single in India?\u003c\/h4\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eThe TELEFUNKEN 6L6GC-TK Vacuum Tube Single is available from \u003cstrong\u003eShivansh Electronics, Kolkata, West Bengal, India\u003c\/strong\u003e, with delivery across India.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Shivansh Electronics","offers":[{"title":"Default Title","offer_id":67947052597615,"sku":"TELEFUNKEN-6L6GC-TK-Vacuum-Tube-Single","price":12400.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0964\/4766\/0399\/files\/TELEFUNKEN-6L6GC-TK-VACUUM-TUBE-SINGLE-TELEFUNKEN-ADD-ONS-SHIVANSH-ELECTRONICS-1.webp?v=1793329774","url":"https:\/\/shivanshelectronics.in\/products\/telefunken-6l6gc-tk-vacuum-tube-single-black-diamond-series-vacuum-tubes","provider":"Shivansh Electronics","version":"1.0","type":"link"}