{"product_id":"12av7-rca-nos-nib-black-plates-halo-getter-matched-pair-tubes-made-in-usa-1","title":"12AV7 RCA NOS NIB Black Plates Halo Getter Matched Pair Tubes Made in USA","description":"\u003cp\u003e\u003cstrong\u003e12AV7 RCA NOS NIB Black Plates Halo Getter Matched Pair Tubes Made in USA\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"217\" data-end=\"766\"\u003eThe \u003cstrong data-start=\"220\" data-end=\"233\"\u003e12AV7 RCA\u003c\/strong\u003e is a dual triode valve developed as a high-performance alternative to the more common 12AT7, with electrical and sonic characteristics that make it ideal for applications in both \u003cstrong data-start=\"435\" data-end=\"444\"\u003eHi-Fi\u003c\/strong\u003e and professional equipment.\u003cbr data-start=\"482\" data-end=\"485\"\u003eThis pair, strictly \u003cstrong data-start=\"514\" data-end=\"554\"\u003eNOS (New Old Stock) NIB (New in Box)\u003c\/strong\u003e , was produced in the RCA factories in the United States and is equipped with \u003cstrong data-start=\"636\" data-end=\"652\"\u003eblack plates\u003c\/strong\u003e and \u003cstrong data-start=\"655\" data-end=\"689\"\u003ehalo getters\u003c\/strong\u003e , distinctive features of the most prestigious versions of the American company.\u003c\/p\u003e\n\u003cp data-start=\"768\" data-end=\"960\"\u003eThe two tubes have been selected and \u003cstrong data-start=\"808\" data-end=\"835\"\u003ematched (matched pair)\u003c\/strong\u003e to ensure a balanced and coherent response, essential for use in stereo stages or critical applications.\u003c\/p\u003e\n\u003ch3 data-start=\"967\" data-end=\"1019\"\u003eTimbre characteristics and sound description\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"1023\" data-end=\"1129\"\u003e\u003cstrong data-start=\"1023\" data-end=\"1032\"\u003eBass\u003c\/strong\u003e : dry, controlled, and fast. Not swollen but well-defined, with excellent timing and articulation.\u003c\/li\u003e\n\u003cli data-start=\"1132\" data-end=\"1263\"\u003e\u003cstrong data-start=\"1132\" data-end=\"1140\"\u003eMids\u003c\/strong\u003e : Rich in harmonics, fluid and musical. Vocals sound natural and present, with a warm but never intrusive timbre.\u003c\/li\u003e\n\u003cli data-start=\"1266\" data-end=\"1395\"\u003e\u003cstrong data-start=\"1266\" data-end=\"1274\"\u003eHighs\u003c\/strong\u003e : Bright and open without harshness. Excellent extension and detail, with an airy rendering that favors three-dimensionality.\u003c\/li\u003e\n\u003cli data-start=\"1398\" data-end=\"1497\"\u003e\u003cstrong data-start=\"1398\" data-end=\"1410\"\u003eDynamics\u003c\/strong\u003e : prompt and lively response, ideal for reproducing micro-details and fast transients.\u003c\/li\u003e\n\u003cli data-start=\"1500\" data-end=\"1613\"\u003e\u003cstrong data-start=\"1500\" data-end=\"1514\"\u003eSoundstage\u003c\/strong\u003e : well-structured spatiality, with clear separation of instruments and stable image in the centre.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"1620\" data-end=\"1660\"\u003e🎧 Use in Hi-Fi Stereo Amplifiers\u003c\/h3\u003e\n\u003cp data-start=\"1661\" data-end=\"1961\"\u003ePerfect as drivers in high-end tube amplifiers, line and phono preamplifiers, as well as tube DACs and headphone stages.\u003cbr data-start=\"1806\" data-end=\"1809\"\u003eTheir balanced and precise timbre makes them an ideal choice for those who want \u003cstrong data-start=\"1892\" data-end=\"1958\"\u003erefined musicality without sacrificing detail and transparency\u003c\/strong\u003e .\u003c\/p\u003e\n\u003ch3 data-start=\"1968\" data-end=\"2004\"\u003e🎸 Use in Music Amplifiers\u003c\/h3\u003e\n\u003cp data-start=\"2005\" data-end=\"2260\"\u003eThe 12AV7 RCA Black Plates are particularly popular with guitarists and keyboardists for their \u003cstrong data-start=\"2105\" data-end=\"2153\"\u003efast dynamic response and punchy sound\u003c\/strong\u003e . Excellent for genres where signal control and mid-frequency clarity are crucial.\u003c\/p\u003e\n\u003ch3 data-start=\"2267\" data-end=\"2302\"\u003e🎯 Note for audiophiles and technicians\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"2305\" data-end=\"2453\"\u003eElectrical equivalent: Can replace the 5965 and, in some applications, the 12AT7 (taking into account differences in gain and transconductance).\u003c\/li\u003e\n\u003cli data-start=\"2456\" data-end=\"2631\"\u003eRCA is universally recognized for its build quality: the \u003cstrong data-start=\"2521\" data-end=\"2537\"\u003eblack plates\u003c\/strong\u003e and the \u003cstrong data-start=\"2543\" data-end=\"2563\"\u003ering getter\u003c\/strong\u003e are a distinctive feature of the 50s and 60s productions.\u003c\/li\u003e\n\u003cli data-start=\"2634\" data-end=\"2780\"\u003eThis matched NOS NIB pair ensures \u003cstrong data-start=\"2673\" data-end=\"2722\"\u003elongevity, quietness and operational stability\u003c\/strong\u003e , with values perfectly aligned in Amplitrex tests.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"2265\" data-start=\"2262\"\u003e\n\u003cp\u003eValves tested on \u003cstrong\u003eAmplitrex AT-1000\u003c\/strong\u003e\u003cspan\u003e\u0026nbsp;\u003c\/span\u003eTube tester:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eTest Conditions:\u003c\/strong\u003e \u003cspan\u003eVa = 150V, Vg = -1V\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eAverage 100% Gm = 8.5 ; Ia = 18 mA\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eTest Result:\u003c\/strong\u003e\u003cspan\u003e\u0026nbsp;\u003c\/span\u003eVERY 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\u003eSection 1: Gm = 7.9 ; Ia = 14.2 mA\u003c\/li\u003e\n\u003cli\u003eSection 2: Gm = 8.4 ; Ia = 16.6 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\u003eSection 1: Gm = 8.2 ; Ia = 15.4 mA\u003c\/li\u003e\n\u003cli\u003eSection 2: Gm = 8.6 ; Ia = 16.2 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 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 \u003cspan\u003eNOS - NIB - New Old Stock, New In Box - Tested and working - Supplied in original box.\u003c\/span\u003e\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\u003eAesthetic condition:\u003c\/strong\u003e \u003cspan\u003eVery good – Clearly legible writing with minor signs of wear, no obvious defects. See photos for details.\u003c\/span\u003e\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eManufacturing Code:\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e-\u003c\/li\u003e\n\u003c\/ul\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":"RCA","offers":[{"title":"Default Title","offer_id":55296792625500,"sku":"03059S","price":29.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0616\/3775\/5127\/files\/1_9bb1cb26-5dc5-46fc-9892-d72e3e1a1911.jpg?v=1755787648","url":"https:\/\/vacuumtubestreasures.com\/en-cy\/products\/12av7-rca-nos-nib-black-plates-halo-getter-matched-pair-tubes-made-in-usa-1","provider":"Vacuum Tubes Treasures","version":"1.0","type":"link"}