{"product_id":"12au7-ecc82-nos-baldwin-by-sylvania-long-gray-plates-halo-getter-matched-tubes-made-in-usa-54","title":"12AU7 ECC82 NOS Baldwin by Sylvania – Long Gray Plates Halo Getter Matched Pair Tubes USA 1953","description":"\u003cp\u003e\u003cstrong\u003e12AU7 ( ECC82 ) NOS Baldwin by SYLVANIA Long Gray Plates Halo Getter Matched Tubes MADE IN USA '53\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eSound Description:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"32\" data-end=\"569\"\u003eThe \u003cstrong data-start=\"35\" data-end=\"76\"\u003eNOS Baldwin by Sylvania 12AU7 (ECC82)\u003c\/strong\u003e , with \u003cstrong data-start=\"82\" data-end=\"116\"\u003eLong Gray Plates and Halo Getter\u003c\/strong\u003e , produced in the \u003cstrong data-start=\"133\" data-end=\"157\"\u003eUSA in 1953\u003c\/strong\u003e , represent one of the most popular choices among preamplifier tubes for their \u003cstrong data-start=\"250\" data-end=\"297\"\u003etransparency, musicality and tonal coherence\u003c\/strong\u003e . Selected by \u003cstrong data-start=\"314\" data-end=\"338\"\u003eSylvania for Baldwin\u003c\/strong\u003e , these tubes were intended for \u003cstrong data-start=\"373\" data-end=\"399\"\u003ehigh-quality organs\u003c\/strong\u003e , which ensures \u003cstrong data-start=\"419\" data-end=\"471\"\u003erigorous selection and low microphonics\u003c\/strong\u003e , making them also ideal for \u003cstrong data-start=\"501\" data-end=\"566\"\u003ehi-fi preamplifiers and musical instrument amplifiers\u003c\/strong\u003e .\u003c\/p\u003e\n\u003cul data-start=\"571\" data-end=\"1482\"\u003e\n\u003cli data-start=\"571\" data-end=\"727\"\u003e\u003cstrong data-start=\"573\" data-end=\"582\"\u003eBass\u003c\/strong\u003e : \u003cstrong data-start=\"584\" data-end=\"620\"\u003eTense, controlled and well defined\u003c\/strong\u003e , with a \u003cstrong data-start=\"642\" data-end=\"673\"\u003esolid and unburdened\u003c\/strong\u003e low range, ensuring \u003cstrong data-start=\"686\" data-end=\"724\"\u003ea deep but never invasive sound\u003c\/strong\u003e .\u003c\/li\u003e\n\u003cli data-start=\"728\" data-end=\"966\"\u003e\u003cstrong data-start=\"730\" data-end=\"738\"\u003eMids\u003c\/strong\u003e : \u003cstrong data-start=\"740\" data-end=\"780\"\u003eNatural, fluid and slightly warm\u003c\/strong\u003e , with a \u003cstrong data-start=\"799\" data-end=\"828\"\u003ebalanced and transparent\u003c\/strong\u003e timbre. Voices and instruments emerge with \u003cstrong data-start=\"871\" data-end=\"912\"\u003egood separation and three-dimensionality\u003c\/strong\u003e , giving \u003cstrong data-start=\"922\" data-end=\"963\"\u003epresence and realism to the soundstage\u003c\/strong\u003e .\u003c\/li\u003e\n\u003cli data-start=\"967\" data-end=\"1128\"\u003e\u003cstrong data-start=\"969\" data-end=\"977\"\u003eHighs\u003c\/strong\u003e : \u003cstrong data-start=\"979\" data-end=\"1013\"\u003eSilky, refined and well extended\u003c\/strong\u003e , with an \u003cstrong data-start=\"1032\" data-end=\"1063\"\u003eopen but unharsh\u003c\/strong\u003e response, offering \u003cstrong data-start=\"1074\" data-end=\"1125\"\u003eclear detail without being fatiguing\u003c\/strong\u003e .\u003c\/li\u003e\n\u003cli data-start=\"1129\" data-end=\"1317\"\u003e\u003cstrong data-start=\"1131\" data-end=\"1143\"\u003eDynamics\u003c\/strong\u003e : \u003cstrong data-start=\"1145\" data-end=\"1174\"\u003eResponsive and well-balanced\u003c\/strong\u003e , with \u003cstrong data-start=\"1191\" data-end=\"1211\"\u003eprecise and smooth\u003c\/strong\u003e transients, delivering a \u003cstrong data-start=\"1231\" data-end=\"1256\"\u003elively and engaging\u003c\/strong\u003e sound, perfect for \u003cstrong data-start=\"1288\" data-end=\"1314\"\u003ebalanced and musical\u003c\/strong\u003e reproduction.\u003c\/li\u003e\n\u003cli data-start=\"1318\" data-end=\"1482\"\u003e\u003cstrong data-start=\"1320\" data-end=\"1334\"\u003eSoundstage\u003c\/strong\u003e : \u003cstrong data-start=\"1336\" data-end=\"1363\"\u003eWide and three-dimensional\u003c\/strong\u003e , with excellent instrument separation, capable of offering \u003cstrong data-start=\"1427\" data-end=\"1479\"\u003edepth and spatiality to sound reproduction\u003c\/strong\u003e .\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1484\" data-end=\"1823\"\u003eThanks to \u003cstrong data-start=\"1496\" data-end=\"1560\"\u003eSylvania's rugged construction and careful selection by Baldwin\u003c\/strong\u003e , these \u003cstrong data-start=\"1569\" data-end=\"1599\"\u003e12AU7 NOS Long Gray Plates\u003c\/strong\u003e offer \u003cstrong data-start=\"1608\" data-end=\"1667\"\u003elow microphonics, operational stability and long life\u003c\/strong\u003e , making them an excellent choice for those looking for a \u003cstrong data-start=\"1728\" data-end=\"1820\"\u003emusical, detailed and harmonious tube, perfect for hi-fi and professional audio applications\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\u003eVa = 250V ; Vg = -8.5V\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAverage 100%:\u003c\/strong\u003e\u003cspan\u003e\u0026nbsp;\u003c\/span\u003eGm = 2200 ; Ia = 10.5 mA\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eTest Result:\u003c\/strong\u003e VERY STRONG\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eValve 1:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eSection 1:\u003c\/strong\u003e\u003cspan\u003e\u0026nbsp;\u003c\/span\u003eGm = 2100 ; Ia = 9.2 mA\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSection 2:\u003c\/strong\u003e\u003cspan\u003e\u0026nbsp;\u003c\/span\u003eGm = 2200 ; Ia = 9.6 mA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eValve 2:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eSection 1:\u003c\/strong\u003e\u003cspan\u003e\u0026nbsp;\u003c\/span\u003eGm = 2100 ; Ia = 9.4 mA\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSection 2:\u003c\/strong\u003e\u003cspan\u003e\u0026nbsp;\u003c\/span\u003eGm = 2200 ; Ia = 10.6 mA\u003c\/li\u003e\n\u003c\/ul\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\u003cmeta charset=\"utf-8\"\u003e Low. Tested and approved for use in hi-fi 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\u003e\u003cstrong\u003eCondition:\u003c\/strong\u003e New Old Stock - Tested and working - In our custom box.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eFunctionality:\u003c\/strong\u003e Fully functional.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCosmetic Condition:\u003c\/strong\u003e Good – Writing partially eroded, but still legible. Valve body in good condition. See photos.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eManufacturing Code:\u003c\/strong\u003e 312 352 - 52nd week of 1953\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":54144528089436,"sku":"01211","price":44.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0616\/3775\/5127\/files\/1_6add13d2-078a-44cd-b299-4fc0f8211a15.jpg?v=1741877473","url":"https:\/\/vacuumtubestreasures.com\/en-de\/products\/12au7-ecc82-nos-baldwin-by-sylvania-long-gray-plates-halo-getter-matched-tubes-made-in-usa-54","provider":"Vacuum Tubes Treasures","version":"1.0","type":"link"}