{"product_id":"12ax7a-ecc83-raytheon-long-black-plates-tested-tube-made-in-usa-60","title":"12AX7A ECC83 RAYTHEON Long Black Plates Tested Tube Made in USA '60","description":"\u003cp\u003e\u003cstrong\u003e12AX7A ( ECC83 ) Baldwin Organ by RAYTHEON Tested Tube Long Black Plates Halo Getter Tubes Made in USA '60\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eDescription:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-end=\"844\" data-start=\"221\"\u003eThe \u003cstrong data-end=\"254\" data-start=\"224\"\u003e12AX7A\u003cmeta charset=\"utf-8\"\u003e \u003cstrong\u003eBaldwin\u003c\/strong\u003e \u003cstrong\u003eOrgan\u003c\/strong\u003e by Raytheon\u003c\/strong\u003e , in this rare 1960s configuration with \u003cstrong data-end=\"326\" data-start=\"303\"\u003elong black plates\u003c\/strong\u003e , \u003cstrong data-end=\"345\" data-start=\"328\"\u003ehalo getter\u003c\/strong\u003e and \u003cstrong data-end=\"372\" data-start=\"348\"\u003esymmetrical structure\u003c\/strong\u003e , represent one of the most musically refined and coherent versions of the famous American ECC83. Selected for \u003cmeta charset=\"utf-8\"\u003e\u003cstrong data-end=\"254\" data-start=\"224\"\u003e\u003cstrong\u003eBaldwin\u003c\/strong\u003e\u003c\/strong\u003e \u003cstrong\u003eOrgan\u003c\/strong\u003e for professional organ use, these valves were chosen for their \u003cstrong data-end=\"600\" data-start=\"577\"\u003elow microphony\u003c\/strong\u003e , \u003cstrong data-end=\"628\" data-start=\"602\"\u003equiet operation\u003c\/strong\u003e and \u003cstrong data-end=\"657\" data-start=\"631\"\u003euniform timbre output\u003c\/strong\u003e . The 1960s Raytheon construction, with long plates and stable internal geometry, gives this valve\u003cb\u003e \u003c\/b\u003ea rich, controlled and three-dimensional sound behavior.\u003c\/p\u003e\n\u003cp data-end=\"1080\" data-start=\"851\"\u003e\u003cstrong data-end=\"860\" data-start=\"851\"\u003eBass\u003c\/strong\u003e : dry and well-defined. The low range is \u003cstrong data-end=\"931\" data-start=\"904\"\u003econtained but articulated\u003c\/strong\u003e , without excess or bloat. Ideal for systems that prefer \u003cstrong data-end=\"1036\" data-start=\"1001\"\u003etonal control and precision\u003c\/strong\u003e , especially in low-energy passages.\u003c\/p\u003e\n\u003cp data-end=\"1358\" data-start=\"1082\"\u003e\u003cstrong data-end=\"1090\" data-start=\"1082\"\u003eMids\u003c\/strong\u003e : Centered and musical. The mids are \u003cstrong data-end=\"1153\" data-start=\"1125\"\u003efull, smooth, and natural\u003c\/strong\u003e , with an excellent balance between transparency and body. Voices are \u003cstrong data-end=\"1254\" data-start=\"1230\"\u003epresent and credible\u003c\/strong\u003e , with a \u003cstrong data-end=\"1300\" data-start=\"1279\"\u003ewarm, refined\u003c\/strong\u003e harmonic grain. Acoustic instruments emerge with coherence and realism.\u003c\/p\u003e\n\u003cp data-end=\"1620\" data-start=\"1360\"\u003e\u003cstrong data-end=\"1368\" data-start=\"1360\"\u003eHighs\u003c\/strong\u003e : extended but silky. The high range is \u003cstrong data-end=\"1432\" data-start=\"1404\"\u003eopen but never aggressive\u003c\/strong\u003e , with detail that \u003cstrong data-end=\"1483\" data-start=\"1455\"\u003eintegrates perfectly\u003c\/strong\u003e into the musical fabric. The brilliance is \u003cstrong data-end=\"1554\" data-start=\"1524\"\u003emeasured and not artificial\u003c\/strong\u003e , with an ideal performance for prolonged listening and analytical environments.\u003c\/p\u003e\n\u003cp data-end=\"1889\" data-start=\"1622\"\u003e\u003cstrong data-end=\"1634\" data-start=\"1622\"\u003eDynamics\u003c\/strong\u003e : responsive but controlled. Transient response is \u003cstrong data-end=\"1708\" data-start=\"1687\"\u003equick and musical\u003c\/strong\u003e , with a \u003cstrong data-end=\"1752\" data-start=\"1718\"\u003ewell-distributed dynamic range\u003c\/strong\u003e , perfect for gain stages where \u003cstrong data-end=\"1843\" data-start=\"1802\"\u003eresponsiveness without excessive exuberance\u003c\/strong\u003e is required. Microdynamics is one of its strong points.\u003c\/p\u003e\n\u003cp data-end=\"2122\" data-start=\"1891\"\u003e\u003cstrong data-end=\"1905\" data-start=\"1891\"\u003eSoundstage\u003c\/strong\u003e : Wide and deep. The soundstage is \u003cstrong data-end=\"1972\" data-start=\"1943\"\u003ethree-dimensional and stable\u003c\/strong\u003e , with \u003cstrong data-end=\"2010\" data-start=\"1978\"\u003eexcellent separation of planes\u003c\/strong\u003e and \u003cstrong data-end=\"2048\" data-start=\"2037\"\u003eprecise\u003c\/strong\u003e spatial positioning. Environmental information is transmitted naturally and coherently.\u003c\/p\u003e\n\u003cp data-end=\"2557\" data-start=\"2129\"\u003e🎧 \u003cstrong data-end=\"2188\" data-start=\"2132\"\u003eUse in Hi-Fi Preamplifiers and Tube DACs\u003c\/strong\u003e \u003cbr data-end=\"2191\" data-start=\"2188\"\u003eThis tube is perfect for use in \u003cstrong data-end=\"2277\" data-start=\"2240\"\u003estereo line-level tube preamplifiers\u003c\/strong\u003e and \u003cstrong data-end=\"2336\" data-start=\"2308\"\u003ehigh-end audio DACs\u003c\/strong\u003e . The balanced tonal output, combined with low noise and transparency, make these tubes \u003cstrong data-end=\"2466\" data-start=\"2436\"\u003eideal for critical listening\u003c\/strong\u003e , even on high-resolution systems with \u003cstrong data-end=\"2533\" data-start=\"2509\"\u003efull-range speakers\u003c\/strong\u003e or \u003cstrong data-end=\"2556\" data-start=\"2536\"\u003ereference headphones\u003c\/strong\u003e .\u003c\/p\u003e\n\u003cp data-end=\"2976\" data-start=\"2559\"\u003e🎸 \u003cstrong data-end=\"2599\" data-start=\"2562\"\u003eUse in Guitar Amplifiers\u003c\/strong\u003e \u003cbr data-end=\"2602\" data-start=\"2599\"\u003eOften found in high-quality American amps (such as \u003cstrong data-end=\"2679\" data-start=\"2659\"\u003eFender Blackface\u003c\/strong\u003e , \u003cstrong data-end=\"2690\" data-start=\"2681\"\u003eAmpeg\u003c\/strong\u003e , \u003cstrong data-end=\"2705\" data-start=\"2692\"\u003eMagnatone\u003c\/strong\u003e ), the 12AX7A Raytheon offers a \u003cstrong data-end=\"2786\" data-start=\"2737\"\u003eclear, articulate, and touch-sensitive voice\u003c\/strong\u003e . Saturation occurs \u003cstrong data-end=\"2845\" data-start=\"2819\"\u003eprogressively and musically\u003c\/strong\u003e , with \u003cstrong data-end=\"2905\" data-start=\"2851\"\u003eexcellent definition even at high gain levels\u003c\/strong\u003e . Excellent for complex clean sounds, articulate blues, and expressive leads.\u003c\/p\u003e\n\u003cp data-end=\"3417\" data-start=\"2978\"\u003e🎯 \u003cstrong data-end=\"3013\" data-start=\"2981\"\u003eNote for audiophiles and technicians\u003c\/strong\u003e\u003cbr data-end=\"3016\" data-start=\"3013\"\u003eA \u003cmeta charset=\"utf-8\"\u003eValve with \u003cstrong data-end=\"3066\" data-start=\"3036\"\u003eremarkable tonal coherence\u003c\/strong\u003e , combining the \u003cstrong data-end=\"3125\" data-start=\"3082\"\u003erefinement of Raytheon construction\u003c\/strong\u003e with the \u003cstrong data-end=\"3163\" data-start=\"3133\"\u003erigorous selection for Baldwin organs\u003c\/strong\u003e . Ideal for those seeking \u003cstrong data-end=\"3286\" data-start=\"3222\"\u003esilence and musicality without excess\u003c\/strong\u003e . The \u003cstrong data-end=\"3314\" data-start=\"3291\"\u003elong black plates\u003c\/strong\u003e give a more airy and rich dynamic behavior than the later versions with short plates.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cstrong\u003eTest Results\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eTested on AMPLITREX AT-1000 Tube Tester\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVoltage Test:\u003cspan\u003e\u0026nbsp;\u003c\/span\u003e\u003c\/strong\u003eVa = 250V, Vg = -2V \u003cstrong\u003e\u003cbr\u003eAverage 100%:\u003cspan\u003e\u0026nbsp;\u003c\/span\u003e\u003c\/strong\u003eGm = 1600 ; Ia = 1.2 mA \u003cstrong\u003e\u003cbr\u003eTEST RESULT:\u003cspan\u003e\u0026nbsp;\u003c\/span\u003e\u003c\/strong\u003eVERY STRONG\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValve\u003c\/strong\u003e :\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eSection 1\u003c\/strong\u003e : Gm = 1600; Ia = 1.0 mA\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSection 2\u003c\/strong\u003e : Gm = 1600; Ia = 1.1 mA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003cbr\u003e\u003c\/div\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 Standard. Tested and approved for use in hi-fi and guitar amplifiers. \u003cspan style=\"text-decoration: underline;\"\u003eNot recommended\u003c\/span\u003e for phono stages or the V1 position in high-sensitivity 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 Vintage tubes - Tested and in perfect working order. Shipped in our custom box for optimal protection.\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\u003eManufacture Code:\u003c\/strong\u003e P28060-37C, Made by RAYTHEON USA for Baldwind Organs Pianos - 37th week of 1960\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\u003cmeta charset=\"utf-8\"\u003e\u003c\/p\u003e","brand":"RAYTHEON","offers":[{"title":"Default Title","offer_id":55814909854044,"sku":"03226","price":59.9,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0616\/3775\/5127\/files\/1_1137ec32-ce58-4244-a79a-2984171c5eec.jpg?v=1761481400","url":"https:\/\/vacuumtubestreasures.com\/en-de\/products\/12ax7a-ecc83-raytheon-long-black-plates-tested-tube-made-in-usa-60","provider":"Vacuum Tubes Treasures","version":"1.0","type":"link"}