{"product_id":"jan-chs-6v6gt-g-vt-107a-sylvania-black-plates-glass-coating-foil-getter-matched-pair-tubes-made-in-usa-40s","title":"6V6GT\/G VT-107A JAN-CHS Sylvania – Black Plates Glass Coating Foil Getter Matched Pair Tubes USA 1940s","description":"\u003cp\u003e\u003cstrong\u003eJAN-CHS-6V6 GT\/G ( VT-107A ) SYLVANIA Black Plates Glass Coating Foil Getter Matched Pair Tubes MADE IN USA '40s\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eDescription:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"32\" data-end=\"549\"\u003eThe \u003cstrong data-start=\"35\" data-end=\"71\"\u003eSylvania JAN-CHS-6V6GT\/G VT-107A\u003c\/strong\u003e , with \u003cstrong data-start=\"77\" data-end=\"122\"\u003eBlack Plates, Glass Coating and Foil Getter\u003c\/strong\u003e , manufactured in the \u003cstrong data-start=\"139\" data-end=\"169\"\u003eUSA in the 1940s\u003c\/strong\u003e , are the highest quality military grade tubes, selected for \u003cstrong data-start=\"231\" data-end=\"299\"\u003erigorous standards of reliability and superior sonic performance\u003c\/strong\u003e . The \u003cstrong data-start=\"320\" data-end=\"352\"\u003egraphite-coated glass\u003c\/strong\u003e construction helps reduce RF interference and improve heat dissipation, while the \u003cstrong data-start=\"438\" data-end=\"454\"\u003eblack plates\u003c\/strong\u003e and \u003cstrong data-start=\"460\" data-end=\"475\"\u003efoil getter\u003c\/strong\u003e provide a \u003cstrong data-start=\"502\" data-end=\"546\"\u003erefined, natural, harmonic-rich\u003c\/strong\u003e tone.\u003c\/p\u003e\n\u003cul data-start=\"551\" data-end=\"1377\"\u003e\n\u003cli data-start=\"551\" data-end=\"698\"\u003e\u003cstrong data-start=\"553\" data-end=\"562\"\u003eBass\u003c\/strong\u003e : \u003cstrong data-start=\"564\" data-end=\"596\"\u003eTense, deep and controlled\u003c\/strong\u003e , with a \u003cstrong data-start=\"618\" data-end=\"641\"\u003esolid and articulated\u003c\/strong\u003e low range, perfect for giving \u003cstrong data-start=\"661\" data-end=\"695\"\u003eweight and structure without excess\u003c\/strong\u003e .\u003c\/li\u003e\n\u003cli data-start=\"699\" data-end=\"885\"\u003e\u003cstrong data-start=\"701\" data-end=\"709\"\u003eMids\u003c\/strong\u003e : \u003cstrong data-start=\"711\" data-end=\"756\"\u003eHarmonious, detailed and slightly warm\u003c\/strong\u003e , with a \u003cstrong data-start=\"771\" data-end=\"795\"\u003etransparent and fluid\u003c\/strong\u003e rendering. Voices and instruments emerge with \u003cstrong data-start=\"838\" data-end=\"882\"\u003eexceptional three-dimensionality and realism\u003c\/strong\u003e .\u003c\/li\u003e\n\u003cli data-start=\"886\" data-end=\"1068\"\u003e\u003cstrong data-start=\"888\" data-end=\"896\"\u003eHighs\u003c\/strong\u003e : \u003cstrong data-start=\"898\" data-end=\"929\"\u003eSilky, open and well extended\u003c\/strong\u003e , with a \u003cstrong data-start=\"948\" data-end=\"981\"\u003erefined and harsh-free\u003c\/strong\u003e response, maintaining \u003cstrong data-start=\"994\" data-end=\"1065\"\u003eexcellent clarity and definition without listening fatigue\u003c\/strong\u003e .\u003c\/li\u003e\n\u003cli data-start=\"1069\" data-end=\"1209\"\u003e\u003cstrong data-start=\"1071\" data-end=\"1083\"\u003eDynamics\u003c\/strong\u003e : \u003cstrong data-start=\"1085\" data-end=\"1108\"\u003eResponsive and natural\u003c\/strong\u003e , with \u003cstrong data-start=\"1125\" data-end=\"1152\"\u003efast and well-articulated\u003c\/strong\u003e transients, offering an \u003cstrong data-start=\"1179\" data-end=\"1206\"\u003eengaging and vibrant\u003c\/strong\u003e sound reproduction.\u003c\/li\u003e\n\u003cli data-start=\"1210\" data-end=\"1377\"\u003e\u003cstrong data-start=\"1212\" data-end=\"1226\"\u003eSoundstage\u003c\/strong\u003e : \u003cstrong data-start=\"1228\" data-end=\"1249\"\u003eWide and immersive\u003c\/strong\u003e , with excellent instrument separation and spatial rendering that restores \u003cstrong data-start=\"1330\" data-end=\"1374\"\u003edepth and detail to the soundstage\u003c\/strong\u003e .\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1379\" data-end=\"1656\"\u003eThanks to their \u003cstrong data-start=\"1396\" data-end=\"1453\"\u003erugged military construction and matched selection\u003c\/strong\u003e , these \u003cstrong data-start=\"1462\" data-end=\"1503\"\u003eJAN-CHS-6V6GT\/G Sylvania Black Plates\u003c\/strong\u003e offer \u003cstrong data-start=\"1512\" data-end=\"1571\"\u003elow microphonics, long life and operational stability\u003c\/strong\u003e , making them \u003cstrong data-start=\"1584\" data-end=\"1653\"\u003eperfect for hi-fi amplifiers and vintage musical instruments\u003c\/strong\u003e .\u003c\/p\u003e\n\u003ch3 data-start=\"1658\" data-end=\"1723\"\u003e\u003cstrong data-start=\"1662\" data-end=\"1721\"\u003e📌 Tips for Using Guitar Amplifiers\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1724\" data-end=\"2083\"\u003eThese \u003cstrong data-start=\"1731\" data-end=\"1765\"\u003emilitary-spec Sylvania 6V6GT\/Gs\u003c\/strong\u003e are \u003cstrong data-start=\"1771\" data-end=\"1818\"\u003eideal for vintage and boutique amps\u003c\/strong\u003e benefiting from their \u003cstrong data-start=\"1846\" data-end=\"1922\"\u003enatural compression, large headroom and harmonically rich saturation\u003c\/strong\u003e . They offer \u003cstrong data-start=\"1932\" data-end=\"1962\"\u003ewarm, detailed cleans\u003c\/strong\u003e , with a \u003cstrong data-start=\"1984\" data-end=\"2026\"\u003esmooth, progressive transition to breakup\u003c\/strong\u003e , perfect for genres like blues, jazz and classic rock.\u003c\/p\u003e\n\u003cp data-start=\"2085\" data-end=\"2834\"\u003eThey are distinguished in amplifiers such as:\u003cbr data-start=\"2122\" data-end=\"2125\"\u003e🎸 \u003cstrong data-start=\"2128\" data-end=\"2178\"\u003eFender Deluxe (5A3, 5B3, 5C3, 5D3 Tweed \u0026amp; 5E3)\u003c\/strong\u003e – For a \u003cstrong data-start=\"2194\" data-end=\"2250\"\u003efat, harmonious sound, with rich, dynamic overdrive\u003c\/strong\u003e . \u003cbr data-start=\"2251\" data-end=\"2254\"\u003e🎸 \u003cstrong data-start=\"2257\" data-end=\"2305\"\u003eFender Princeton (pre-Blackface \u0026amp; Blackface)\u003c\/strong\u003e – Ideal for \u003cstrong data-start=\"2319\" data-end=\"2376\"\u003ebright clean sounds and smooth, natural overdrive\u003c\/strong\u003e .\u003cbr data-start=\"2377\" data-end=\"2380\"\u003e🎸 \u003cstrong data-start=\"2383\" data-end=\"2412\"\u003eGibson GA-40 Les Paul Amp\u003c\/strong\u003e – Perfect for \u003cstrong data-start=\"2428\" data-end=\"2492\"\u003esmooth, creamy tones with exceptional dynamic response\u003c\/strong\u003e .\u003cbr data-start=\"2493\" data-end=\"2496\"\u003e🎸 \u003cstrong data-start=\"2499\" data-end=\"2533\"\u003eSupro 1600 Series \u0026amp; Valco Amps\u003c\/strong\u003e – Ideal for \u003cstrong data-start=\"2547\" data-end=\"2613\"\u003ebluesy tones with great response to playing nuances\u003c\/strong\u003e .\u003cbr data-start=\"2614\" data-end=\"2617\"\u003e🎸 \u003cstrong data-start=\"2620\" data-end=\"2643\"\u003eMagnatone 213 \u0026amp; 280\u003c\/strong\u003e – For a \u003cstrong data-start=\"2659\" data-end=\"2710\"\u003espacious, detailed sound with vibrant modulation\u003c\/strong\u003e . \u003cbr data-start=\"2711\" data-end=\"2714\" data-is-only-node=\"\"\u003e🎸 \u003cstrong data-start=\"2717\" data-end=\"2745\"\u003eDr. Z Z-28, Carr Vincent\u003c\/strong\u003e – For those looking for a \u003cstrong data-start=\"2775\" data-end=\"2831\"\u003emodern answer with the warm character of vintage tubes\u003c\/strong\u003e .\u003c\/p\u003e\n\u003cp data-start=\"2836\" data-end=\"3028\"\u003eThese tubes provide \u003cstrong data-start=\"2862\" data-end=\"2923\"\u003enatural sustain and smooth, progressive saturation\u003c\/strong\u003e , making them \u003cstrong data-start=\"2936\" data-end=\"3025\"\u003eone of the best choices for amplifiers with 40s and 50s-inspired circuits\u003c\/strong\u003e .\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cstrong\u003eTest Results:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eValve tested on \u003cstrong\u003eAMPLITREX AT-1000\u003c\/strong\u003e Tube Tester:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eTest Conditions:\u003c\/strong\u003e \u003cspan\u003e\u003cmeta charset=\"utf-8\"\u003eVa = 250V; Vg2 = 250V; Vg = -12.5V\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAverage 100%:\u003c\/strong\u003e \u003cspan\u003e\u003cmeta charset=\"utf-8\"\u003eGm = 4.1 ; Ia = 45 mA\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eTest Result:\u003c\/strong\u003e VERY STRONG\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e \u003cstrong\u003eValve 1:\u003c\/strong\u003e\u003cmeta charset=\"utf-8\"\u003e \u003cspan\u003eGm = 4.6 ; Ia = 49 mA\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e \u003cstrong\u003eValve 2:\u003c\/strong\u003e\u003cmeta charset=\"utf-8\"\u003e \u003cspan\u003eGm = 4.6 ; Ia = 50 mA\u003c\/span\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cstrong\u003eAdditional Tests Performed:\u003c\/strong\u003e\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eMicrophonics:\u003c\/strong\u003e Low Noise \u0026amp; Microphonics – Tested and rated for use in hi-fi systems and guitar amplifiers.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eOutput Quality:\u003c\/strong\u003e Excellent – Very strong and stable output, no fluctuations.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eShort circuits and GAS:\u003c\/strong\u003e Absent.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cstrong\u003eConditions:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-end=\"371\" data-start=\"221\"\u003e\u003cstrong data-end=\"233\" data-start=\"223\"\u003eCondition:\u003c\/strong\u003e \u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003eLikely NOS – Excellent emissions and condition,\u003c\/strong\u003e no visible signs of use\u0026nbsp;- \u003cstrong\u003eTested and fully functional.\u003c\/strong\u003e Supplied in our custom box for optimal protection.\u003c\/li\u003e\n\u003cli data-end=\"456\" data-start=\"372\"\u003e\u003cstrong data-end=\"391\" data-start=\"374\"\u003eFunctionality:\u003c\/strong\u003e \u003cstrong data-end=\"419\" data-start=\"392\"\u003eFully operational\u003c\/strong\u003e , with excellent test results.\u003c\/li\u003e\n\u003cli data-end=\"672\" data-start=\"457\"\u003e\u003cstrong data-end=\"484\" data-start=\"459\"\u003eCosmetic Condition:\u003c\/strong\u003e \u003cstrong data-end=\"500\" data-start=\"485\"\u003eVery Good\u003c\/strong\u003e – The lettering is \u003cstrong data-end=\"561\" data-start=\"519\"\u003epartially eroded but still legible\u003c\/strong\u003e . The valve body is in excellent condition, with no obvious signs of wear. \u003cstrong data-end=\"670\" data-start=\"641\"\u003eSee photos for details.\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-end=\"797\" data-start=\"673\"\u003e\u003cstrong data-end=\"703\" data-start=\"675\"\u003eManufacturing code:\u003c\/strong\u003e \u003cstrong data-end=\"723\" data-start=\"704\"\u003eUndecipherable\u003c\/strong\u003e , but traceable to Sylvania military productions of the 40s-50s.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003ca rel=\"noopener\" title=\"Why our tubes are different – the VTT protocol that improves sound, reliability and durability\" href=\"https:\/\/vacuumtubestreasures.com\/blogs\/notizie\/perche-le-nostre-valvole-sono-diverse\" target=\"_blank\"\u003e\u003cstrong\u003eFind out why our valves are different →\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"SYLVANIA","offers":[{"title":"Default Title","offer_id":54183618773340,"sku":"02832M","price":159.0,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0616\/3775\/5127\/files\/2_88c2b114-1fc5-479c-9d42-9ca609e53ed9.jpg?v=1742467381","url":"https:\/\/vacuumtubestreasures.com\/en-de\/products\/jan-chs-6v6gt-g-vt-107a-sylvania-black-plates-glass-coating-foil-getter-matched-pair-tubes-made-in-usa-40s","provider":"Vacuum Tubes Treasures","version":"1.0","type":"link"}