{"product_id":"12au7-ecc82-rca-by-matsushita-gray-plates-halo-tilt-getter-tested-tube-made-in-japan","title":"12AU7 ECC82 NOS NIB RCA by Matsushita – Gray Plates Halo Getter Tested Tube Japan","description":"\u003cp\u003e \u003cstrong\u003e12AU7 ( ECC82 ) NOS NIB RCA by Matsushita Gray Plates Halo Tilt Getter Tested Tube MADE IN JAPAN\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003e \u003cstrong\u003eDescription:\u003c\/strong\u003e\n\u003c\/h3\u003e\n\n \u003cp data-end=\"775\" data-start=\"176\"\u003eThe \u003cstrong data-end=\"214\" data-start=\"179\"\u003e12AU7 (ECC82) RCA by Matsushita\u003c\/strong\u003e , with \u003cstrong data-end=\"254\" data-start=\"220\"\u003eGray Plates and Halo Tilt Getter\u003c\/strong\u003e , is a preamp tube manufactured in \u003cstrong data-end=\"312\" data-start=\"300\"\u003eJapan\u003c\/strong\u003e to RCA specifications, often nicknamed \u003cstrong data-end=\"382\" data-start=\"355\"\u003e\"the Japanese Mullard\"\u003c\/strong\u003e . Matsushita created these tubes using \u003cstrong data-end=\"517\" data-start=\"444\"\u003eequipment and technology licensed directly from Mullard\u003c\/strong\u003e , replicating the \u003cstrong data-end=\"613\" data-start=\"533\"\u003emanufacturing process and sound quality of the famous British tubes\u003c\/strong\u003e . The result is a tube with a \u003cstrong data-end=\"692\" data-start=\"650\"\u003edetailed, warm and musical tone\u003c\/strong\u003e , perfect for \u003cstrong data-end=\"772\" data-start=\"707\"\u003ehi-fi preamplifiers and musical instrument amplifiers\u003c\/strong\u003e .\u003c\/p\u003e\n\n\u003cul data-end=\"1724\" data-start=\"777\"\u003e\n\n\u003cli data-end=\"938\" data-start=\"777\"\u003e \n\u003cstrong data-end=\"788\" data-start=\"779\"\u003eBass\u003c\/strong\u003e : \u003cstrong data-end=\"826\" data-start=\"790\"\u003eTight, defined and well controlled\u003c\/strong\u003e , with a \u003cstrong data-end=\"875\" data-start=\"848\"\u003esolid but never intrusive\u003c\/strong\u003e low range, ensuring \u003cstrong data-end=\"935\" data-start=\"888\"\u003earticulation and precision without bloat\u003c\/strong\u003e .\u003c\/li\u003e\n\n\u003cli data-end=\"1146\" data-start=\"939\"\u003e\n\n \u003cstrong data-end=\"949\" data-start=\"941\"\u003eMids\u003c\/strong\u003e : \u003cstrong data-end=\"986\" data-start=\"951\"\u003eSmooth, natural and detailed\u003c\/strong\u003e , with an \u003cstrong data-end=\"1024\" data-start=\"1005\"\u003eopen and fluid\u003c\/strong\u003e timbre. Voices and instruments emerge with \u003cstrong data-end=\"1089\" data-start=\"1063\"\u003eclarity and depth\u003c\/strong\u003e , offering a \u003cstrong data-end=\"1143\" data-start=\"1117\"\u003eharmonious and realistic\u003c\/strong\u003e reproduction.\u003c\/li\u003e\n\n\u003cli data-end=\"1360\" data-start=\"1147\"\u003e \n\u003cstrong data-end=\"1157\" data-start=\"1149\"\u003eHighs\u003c\/strong\u003e : \u003cstrong data-end=\"1200\" data-start=\"1159\"\u003eSilky, refined, and free of harshness\u003c\/strong\u003e , with a \u003cstrong data-end=\"1237\" data-start=\"1215\"\u003esweet, well-extended\u003c\/strong\u003e performance. Detail is always \u003cstrong data-end=\"1291\" data-start=\"1261\"\u003emusical and never fatiguing\u003c\/strong\u003e , maintaining a perfect balance between \u003cstrong data-end=\"1357\" data-start=\"1331\"\u003eclarity and musicality\u003c\/strong\u003e .\u003c\/li\u003e\n\n\u003cli data-end=\"1522\" data-start=\"1361\"\u003e\n\n \u003cstrong data-end=\"1375\" data-start=\"1363\"\u003eDynamics\u003c\/strong\u003e : \u003cstrong data-end=\"1404\" data-start=\"1377\"\u003eLively and well-balanced\u003c\/strong\u003e , with \u003cstrong data-end=\"1460\" data-start=\"1438\"\u003eresponsive and precise\u003c\/strong\u003e transient management, allowing for \u003cstrong data-end=\"1519\" data-start=\"1492\"\u003enatural and engaging\u003c\/strong\u003e reproduction.\u003c\/li\u003e\n\n\u003cli data-end=\"1724\" data-start=\"1523\"\u003e \n\u003cstrong data-end=\"1539\" data-start=\"1525\"\u003eSoundstage\u003c\/strong\u003e : \u003cstrong data-end=\"1559\" data-start=\"1541\"\u003eWide and airy\u003c\/strong\u003e , with excellent instrument separation and \u003cstrong data-end=\"1663\" data-start=\"1633\"\u003edeep, three-dimensional\u003c\/strong\u003e spatial reconstruction, ideal for those looking for a \u003cstrong data-end=\"1721\" data-start=\"1695\"\u003erealistic and immersive\u003c\/strong\u003e sound.\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n \u003cp data-end=\"2198\" data-start=\"1726\"\u003eThanks to their \u003cstrong data-end=\"1787\" data-start=\"1743\"\u003erugged construction and RCA selection\u003c\/strong\u003e , the \u003cstrong data-end=\"1824\" data-start=\"1792\"\u003e12AU7 Matsushita Gray Plates\u003c\/strong\u003e offer \u003cstrong data-end=\"1896\" data-start=\"1833\"\u003eoperational stability, low microphonics, and a long lifespan\u003c\/strong\u003e , making them perfect for \u003cstrong data-end=\"1997\" data-start=\"1922\"\u003eaudiophiles and musicians looking for a balanced, musical tube\u003c\/strong\u003e . Their \u003cstrong data-end=\"2064\" data-start=\"2007\"\u003ewarm, detailed, and harmonically rich sound signature\u003c\/strong\u003e , comparable to the original Mullards, makes them an excellent choice for those seeking \u003cstrong data-end=\"2195\" data-start=\"2155\"\u003eprecise, smooth sound reproduction\u003c\/strong\u003e .\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003e \u003cstrong\u003eTest Results:\u003c\/strong\u003e\n\u003c\/h3\u003e\n\n\u003cp\u003e Valve tested on \u003cstrong\u003eAMPLITREX AT-1000\u003c\/strong\u003e Tube Tester:\u003c\/p\u003e\n\n\u003cul\u003e\n\n\u003cli\u003e\n\n \u003cstrong\u003eTest Conditions:\u003c\/strong\u003e \u003cspan\u003eVa = 250V ; Vg = -8.5V\u003c\/span\u003e\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n \u003cstrong\u003eAverage 100%:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eGm = 2200 ; Ia = 10.5 mA\u003c\/li\u003e\n\n\u003cli\u003e \n\u003cstrong\u003eTest Result:\u003c\/strong\u003e VERY STRONG\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003cp\u003e \u003cstrong\u003eValve:\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\n\u003cli\u003e\n\n \u003cstrong\u003eSection 1:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eGm = 1900 ; Ia = 9.0 mA\u003c\/li\u003e\n\n\u003cli\u003e\n\n \u003cstrong\u003eSection 2:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eGm = 2100 ; Ia = 10.2 mA\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003cdiv\u003e \u003cstrong\u003eAdditional Tests Performed:\u003c\/strong\u003e\n\u003c\/div\u003e\n\n\u003cul\u003e\n\n\u003cli\u003e \u003cspan\u003e\u003cstrong\u003eMicrophonics:\u003c\/strong\u003e\u003cmeta charset=\"utf-8\"\u003e Standard. Tested and approved for use in hi-fi and guitar amplifiers.\u003c\/span\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e \u003cspan\u003e\u003cstrong\u003eOutput Quality:\u003c\/strong\u003e Excellent – ​​Very strong and stable output, no fluctuations.\u003c\/span\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e \u003cspan\u003e\u003cstrong\u003eShort circuits and GAS:\u003c\/strong\u003e Absent.\u003c\/span\u003e\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003e \u003cstrong\u003eConditions:\u003c\/strong\u003e\n\u003c\/h3\u003e\n\n\u003cul\u003e\n\n\u003cli\u003e\n\n \u003cstrong\u003eCondition:\u003c\/strong\u003e NOS - NIB - New Old Stock, New In Box - Tested and working - In original box.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n \u003cstrong\u003eFunctionality:\u003c\/strong\u003e Fully functional.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n \u003cstrong\u003eCosmetic condition:\u003c\/strong\u003e Excellent – ​​Well-preserved lettering, minimal signs of wear. See photos.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\n\n\u003c\/li\u003e\n\n\u003cli\u003e \n\u003cstrong\u003eManufacturing Code:\u003c\/strong\u003e Unreadable, identifiable by construction features. 1960s\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\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":"RCA","offers":[{"title":"Default Title","offer_id":54081218117980,"sku":"02799","price":59.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0616\/3775\/5127\/files\/1_c088c2a9-e75f-48c7-9526-c9841dff1e63.jpg?v=1741010903","url":"https:\/\/vacuumtubestreasures.com\/en-de\/products\/12au7-ecc82-rca-by-matsushita-gray-plates-halo-tilt-getter-tested-tube-made-in-japan","provider":"Vacuum Tubes Treasures","version":"1.0","type":"link"}