{"product_id":"6as7ga-6080-ge-nos-nib-black-plate-green-print-matched-pair-amplitrex-tested-copia","title":"6AS7GA GE NOS NIB Military Green Label Matched Quad Black Plates AMPLITREX Tested USA","description":"\u003cp\u003e\u003cstrong\u003e6AS7GA GE NOS NIB Black Plates Military Green Label Matched Quad AMPLITREX Tested Made in USA '86\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis quartet is intended for stereo OTL amplifiers or balanced configurations using four power tubes, where electrical coherence and stability between channels are crucial.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eDescription:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eOne of the \u003cstrong\u003elast true American military grade 6AS7GAs\u003c\/strong\u003e , selected and tested specifically for \u003cstrong\u003ehigh reliability audio OTL\u003c\/strong\u003e applications.\u003c\/p\u003e\n\u003cp\u003eThis \u003cstrong\u003emilitary-grade General Electric 6AS7GA\u003c\/strong\u003e represents a \u003cstrong\u003econscious, technical and long-lasting\u003c\/strong\u003e choice, clearly superior to modern production in terms of \u003cstrong\u003econstruction quality, electrical stability and sonic coherence\u003c\/strong\u003e .\u003c\/p\u003e\n\u003cp\u003eWe are talking about \u003cstrong\u003eauthentic NOS\u003c\/strong\u003e , never used, coming from \u003cstrong\u003eDLA (Defense Logistics Agency) military stock\u003c\/strong\u003e , produced in the United States in \u003cstrong\u003e1986\u003c\/strong\u003e at the \u003cstrong\u003eGE plant in Owensboro, Kentucky\u003c\/strong\u003e : one of the \u003cstrong\u003elast American sites truly specialized\u003c\/strong\u003e in the production of \u003cstrong\u003ehigh current\u003c\/strong\u003e power valves.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNOS Military Stock – direct replacement for 6080\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eWhy choose this 6AS7GA GE\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e✔ \u003cstrong\u003eUS military production\u003c\/strong\u003e , not civilian\u003cbr\u003e✔ \u003cstrong\u003eBlack plates\u003c\/strong\u003e and oversized internal structure\u003cbr\u003e✔ \u003cstrong\u003eReal selection and matching\u003c\/strong\u003e , designed for OTL use\u003cbr\u003e✔ \u003cstrong\u003eHigher current stability\u003c\/strong\u003e than common and modern 6080 productions\u003cbr\u003e✔ \u003cstrong\u003eProfessional Amplitrex AT-1000 test\u003c\/strong\u003e , not generic tools\u003c\/p\u003e\n\u003cp\u003eThis \u003cstrong\u003eis not an “alternative 6080”\u003c\/strong\u003e , but a \u003cstrong\u003efully mature 6AS7GA\u003c\/strong\u003e , designed for \u003cstrong\u003elong, safe, and predictable electrical operation\u003c\/strong\u003e in serious OTL circuits.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eTimbre characteristics and sound description\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBass\u003c\/strong\u003e\u003cbr\u003eAuthoritative and well-grounded. The low end is deep, full-bodied, and perfectly controlled, capable of imparting weight and realism without compromising precision and speed.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMedium\u003c\/strong\u003e\u003cbr\u003eSoft, natural, and three-dimensional. The voices emerge with warmth and naturalness; acoustic instruments and piano are present and believable.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHigh\u003c\/strong\u003e\u003cbr\u003eClean, sweet, and never aggressive. The extension is broad and even, with a refined brilliance that adds air and transparency without overpowering.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDynamics\u003c\/strong\u003e\u003cbr\u003eFluid, coherent, and free of rigidity. Micro and macrodynamics are restored naturally, without compression or hardening.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSoundstage\u003c\/strong\u003e \u003cbr\u003eWide, stable and deep, with precise focus and perfectly balanced soundstage thanks to the accurate matching of the quartet.\u003c\/p\u003e\n\u003ch3\u003e🎧 \u003cstrong\u003eUse in OTL Hi-Fi Amplifiers\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eIdeal for mid-high and high-end \u003cstrong\u003eOTL (Output Transformerless)\u003c\/strong\u003e amplifiers such as \u003cstrong\u003eAtma-Sphere\u003c\/strong\u003e , \u003cstrong\u003eFeliks Audio\u003c\/strong\u003e , \u003cstrong\u003eDarkVoice\u003c\/strong\u003e , as well as for serious custom projects, where the following are required:\u003c\/p\u003e\n\u003cp\u003e• high current capacity\u003cbr\u003e• stability over time\u003cbr\u003e• predictable electrical behavior\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMatched Quad\u003c\/strong\u003e configuration recommended for OTL stereo and projects requiring perfect coherence between channels.\u003c\/p\u003e\n\u003ch3\u003e🎸 \u003cstrong\u003eUse in Music Amplifiers\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eAlso appreciated in the professional field for their \u003cstrong\u003elow noise\u003c\/strong\u003e and \u003cstrong\u003econtrolled harmonic output\u003c\/strong\u003e , the GE 6AS7GA offer a \u003cstrong\u003ewarm, solid and stable\u003c\/strong\u003e tone, suitable for studio preamps and vintage tube compressors.\u003c\/p\u003e\n\u003ch3\u003e🎯 \u003cstrong\u003eNote for audiophiles and collectors\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e• \u003cstrong\u003eGE Manufacturing – Owensboro, Kentucky\u003c\/strong\u003e\u003cbr\u003e• \u003cstrong\u003e1986\u003c\/strong\u003e – last period of true quality American military production\u003cbr\u003e• \u003cstrong\u003eNOS NIB\u003c\/strong\u003e – New Old Stock, New In Box\u003cbr\u003e• \u003cstrong\u003eGE military green screen printing\u003c\/strong\u003e\u003cbr\u003e• \u003cstrong\u003eDomed chrome getter\u003c\/strong\u003e\u003cbr\u003e• \u003cstrong\u003eNever used\u003c\/strong\u003e valves, perfectly preserved\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eManufacturing Code:\u003c\/strong\u003e 86-48 (48th week of 1986 – RMA\/EIA Open Date Code)\u003c\/p\u003e\n\u003cp\u003eA \u003cstrong\u003ereliable, stable and musically mature quartet\u003c\/strong\u003e , designed for those who use \u003cstrong\u003eserious OTL amplifiers\u003c\/strong\u003e and want an \u003cstrong\u003eauthentic 6AS7GA\u003c\/strong\u003e , capable of lasting over time \u003cstrong\u003ewithout compromise with modern production\u003c\/strong\u003e .\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cstrong\u003eProfessional testing and selection\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eAll valves are \u003cstrong\u003etested and matched by us\u003c\/strong\u003e on \u003cstrong\u003eAmplitrex AT-1000\u003c\/strong\u003e , with \u003cstrong\u003edouble control procedure\u003c\/strong\u003e :\u003c\/p\u003e\n\u003cp\u003e• \u003cstrong\u003eFixed polarization pre-selection\u003c\/strong\u003e for linearity, symmetry and defect-free verification\u003cbr\u003e• \u003cstrong\u003eAuto Bias testing\u003c\/strong\u003e to simulate real operating conditions in OTL circuits\u003c\/p\u003e\n\u003cp\u003e✔ \u003cstrong\u003eVERY STRONG\u003c\/strong\u003e output\u003cbr\u003e✔ Well-balanced internal sections\u003cbr\u003e✔ Matched quartet with consistent behavior\u003cbr\u003e✔ No shorts, gases or instability\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cstrong\u003eTest results (for technicians and professionals)\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve #16\u003c\/strong\u003e\u003cbr\u003eSection 1 → Gm = 3250 ; Ia = 55 mA ; Vg = 115 V\u003cbr\u003eSection 2 → Gm = 3470 ; Ia = 55 mA ; Vg = 111 V\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValve #17\u003c\/strong\u003e\u003cbr\u003eSection 1 → Gm = 3450 ; Ia = 55 mA ; Vg = 110 V\u003cbr\u003eSection 2 → Gm = 3320 ; Ia = 55 mA ; Vg = 113 V\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValve #20\u003c\/strong\u003e\u003cbr\u003eSection 1 → Gm = 3160 ; Ia = 55 mA ; Vg = 117 V\u003cbr\u003eSection 2 → Gm = 3640 ; Ia = 55 mA ; Vg = 110 V\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValve #3\u003c\/strong\u003e\u003cbr\u003eSection 1 → Gm = 3180 ; Ia = 55 mA ; Vg = 112 V\u003cbr\u003eSection 2 → Gm = 3500 ; Ia = 55 mA ; Vg = 113 V\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAdditional tests\u003c\/strong\u003e \u003cbr\u003e• Microphonics: standard, compliant for hi-fi and musical use\u003cbr\u003e• Emission: excellent, stable, without fluctuations\u003cbr\u003e• Shorts and gas: absent\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOTL Set (8–12 tubes) → available on request \/ dedicated selection\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/vacuumtubestreasures.com\/blogs\/notizie\/perche-le-nostre-valvole-sono-diverse\" title=\"Why our tubes are different – the VTT protocol that improves sound, reliability and durability\" rel=\"noopener\" target=\"_blank\"\u003e\u003cstrong\u003eFind out why our valves are different →\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"GE","offers":[{"title":"Default Title","offer_id":56145394237788,"sku":"03298Q","price":23400.0,"currency_code":"ALL","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0616\/3775\/5127\/files\/3_bca0378d-2981-4ce5-9c14-ca06e505b874.jpg?v=1764867493","url":"https:\/\/vacuumtubestreasures.com\/en-al\/products\/6as7ga-6080-ge-nos-nib-black-plate-green-print-matched-pair-amplitrex-tested-copia","provider":"Vacuum Tubes Treasures","version":"1.0","type":"link"}