{"product_id":"12x4-raytheon-nos-nib-black-plates-halo-getter-tube-rectifier-made-in-usa-60s","title":"12X4 RAYTHEON NOS NIB Black Plates Halo Getter Tube Rectifier Made in USA '60s","description":"\u003cp\u003e\u003cstrong\u003e12X4 RAYTHEON NOS NIB Black Plates Halo Getter Tube Rectifier Made in USA '60s\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eDescription:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-end=\"514\" data-start=\"141\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003e The 12X4 RAYTHEON NOS NIB with black plates and halo getter, manufactured in the USA in the 1960s, represents one of the most solid and reliable interpretations of this compact grinder. Supplied in its original vintage packaging, it combines the precision construction typical of Raytheon with a balanced and quiet sound, perfect for those seeking stability and long-lasting durability.\u003cbr\u003e\u003c\/p\u003e\n\u003cp data-end=\"546\" data-start=\"516\"\u003e\u003cstrong data-end=\"544\" data-start=\"518\"\u003eSound characteristics\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"520\" data-end=\"630\"\u003e\u003cstrong data-start=\"520\" data-end=\"529\"\u003eBass\u003c\/strong\u003e : Controlled and fast, with a dry setting that keeps the low end free of bloat.\u003c\/li\u003e\n\u003cli data-start=\"633\" data-end=\"736\"\u003e\u003cstrong data-start=\"633\" data-end=\"641\"\u003eMids\u003c\/strong\u003e : linear and transparent, capable of returning a clean signal without adding colorations.\u003c\/li\u003e\n\u003cli data-start=\"739\" data-end=\"852\"\u003e\u003cstrong data-start=\"739\" data-end=\"747\"\u003eHighs\u003c\/strong\u003e : clear, well-extended, with a light touch of airiness that makes the performance brilliant but never tiring.\u003c\/li\u003e\n\u003cli data-start=\"855\" data-end=\"974\"\u003e\u003cstrong data-start=\"855\" data-end=\"867\"\u003eDynamic\u003c\/strong\u003e : prompt and stable, with the ability to maintain constant power even under variable loads.\u003c\/li\u003e\n\u003cli data-start=\"977\" data-end=\"1116\"\u003e\u003cstrong data-start=\"977\" data-end=\"991\"\u003eSoundstage\u003c\/strong\u003e : ensures a neutral and uncluttered soundstage, allowing the character of the active tubes to emerge without interference.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1118\" data-end=\"1414\"\u003e🎧 \u003cstrong data-start=\"1121\" data-end=\"1144\"\u003eUse in Hi-Fi Stereo\u003c\/strong\u003e\u003cbr data-start=\"1144\" data-end=\"1147\"\u003eParticularly suitable for 1960s hi-fi preamplifiers and tuners, where it provides smooth and reliable rectification. Its quiet operation and excellent noise isolation help preserve the original character of the vintage equipment.\u003c\/p\u003e\n\u003cp data-start=\"1416\" data-end=\"1653\"\u003e🎸 \u003cstrong data-start=\"1419\" data-end=\"1452\"\u003eUse in Music Amplifiers\u003c\/strong\u003e \u003cbr data-start=\"1452\" data-end=\"1455\"\u003eAlso used in electronic instruments and small vintage amplifiers, the 12X4 RAYTHEON ensures power continuity and a neutral tone that keeps the sound of the instrument faithful.\u003c\/p\u003e\n\u003cp data-start=\"1655\" data-end=\"1982\"\u003e🎯 \u003cstrong data-start=\"1658\" data-end=\"1690\"\u003eNote for audiophiles and technicians\u003c\/strong\u003e\u003cbr data-start=\"1690\" data-end=\"1693\"\u003eThis NOS NIB version with halo getter and black plates is a popular variant for its robustness and stability. It's an excellent choice for those who want to preserve the historical integrity of their equipment, with the guarantee of an original American grinder from the 1960s.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cstrong\u003eTest Results:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve tested on Funke W19 Tube Tester:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eTest Conditions:\u003c\/strong\u003e Va = 60V, Vf = 6.3V\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAverage 100%:\u003c\/strong\u003e Ia =\u003cmeta charset=\"utf-8\"\u003e 42 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\u003e\u003cmeta charset=\"utf-8\"\u003eValve:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eSection 1:\u003c\/strong\u003e Ia = 48 mA\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSection 2:\u003c\/strong\u003e Ia = 49 mA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\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 Very\u003c\/span\u003e \u003cmeta charset=\"utf-8\"\u003eLow. Tested and approved for use in hi-fi and guitar amplifiers.\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 NOS - NIB - New Old Stock, New In Box - Tested and working - Supplied in original 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\u003eAesthetic condition:\u003c\/strong\u003e Very good – Clearly legible writing with minor signs of wear, no obvious defects. See photos for details.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eManufacturing Code:\u003c\/strong\u003e\u003cmeta charset=\"utf-8\"\u003e \u003cspan\u003eUnreadable - Year of production deduced from the valve structure. Made in the 1960s.\u003c\/span\u003e\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":"RAYTHEON","offers":[{"title":"Default Title","offer_id":55490377711964,"sku":"03121","price":24.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0616\/3775\/5127\/files\/1_b7c96da1-ab82-4cbf-9e64-c196f212a0a1.jpg?v=1758044615","url":"https:\/\/vacuumtubestreasures.com\/en-hr\/products\/12x4-raytheon-nos-nib-black-plates-halo-getter-tube-rectifier-made-in-usa-60s","provider":"Vacuum Tubes Treasures","version":"1.0","type":"link"}