{"product_id":"12ay7-nos-nib-tung-sol-gray-plates-square-getter-amplitrex-tested-made-in-usa","title":"12AY7 NOS NIB TUNG-SOL Gray Plates Square Getter AMPLITREX Tested Made in USA","description":"\u003cp\u003e\u003cstrong\u003e12AY7 \/ 6072 TUNG-SOL NOS NIB Gray Plates Square Getter – Made in USA\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAMPLITREX Tested – STRONG – Same Data Codes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003cstrong\u003eThe price refers to one selected tube\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eDescription:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp class=\"p1\"\u003eThese 12AY7 Tung-Sol NOS NIB tubes are a splendid testament to vintage American manufacturing, featuring \u003cspan class=\"s1\"\u003e\u003cb\u003eGray Plates\u003c\/b\u003e\u003c\/span\u003e and \u003cspan class=\"s1\"\u003e\u003cb\u003eSquare Getter\u003c\/b\u003e\u003c\/span\u003e construction, characteristics highly valued by audiophiles and musicians seeking an authentic, musical, and highly characterful 12AY7 tube.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eThe two available tubes have the \u003cspan class=\"s1\"\u003e\u003cb\u003esame manufacturing codes\u003c\/b\u003e\u003c\/span\u003e and original Tung-Sol boxes. They are not offered as a matched pair but sold \u003cspan class=\"s1\"\u003e\u003cb\u003eindividually\u003c\/b\u003e\u003c\/span\u003e, allowing the customer to purchase a carefully selected, tested, and verified NOS tube.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eEach unit has been tested on an \u003cspan class=\"s1\"\u003e\u003cb\u003eAMPLITREX AT-1000 Tube Tester\u003c\/b\u003e\u003c\/span\u003e and yielded a \u003cspan class=\"s1\"\u003e\u003cb\u003eSTRONG\u003c\/b\u003e\u003c\/span\u003e result, with stable emission and values fully suitable for use in audio and musical applications.\u003c\/p\u003e\n\u003ch3 data-end=\"552\" data-start=\"526\"\u003eSonic Description\u003c\/h3\u003e\n\u003cp class=\"p1\"\u003eThe 12AY7 Tung-Sol offers a refined, dynamic, and natural sonic signature, with lower gain than the 12AX7 and a particularly balanced response. It is an ideal tube when more control, greater headroom, and a less aggressive but detail-rich presentation are desired.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cb\u003eBass\u003c\/b\u003e\u003cbr\u003eControlled, dry, and well-articulated. They provide a solid foundation without weighing down the sonic message.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cb\u003eMids\u003c\/b\u003e\u003cbr\u003eNatural, musical, and very legible. Vocals and acoustic instruments maintain a credible presence, with beautiful harmonic richness.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cb\u003eHighs\u003c\/b\u003e\u003cbr\u003eClean and open, with good extension and no harshness. The rendition remains elegant and pleasant even during prolonged listening.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cb\u003eDynamics\u003c\/b\u003e\u003cbr\u003eSmooth and reactive, with excellent transient handling. The tube responds progressively and controllably, a very useful characteristic in both hi-fi and guitar amplifiers.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cb\u003eSoundstage\u003c\/b\u003e\u003cbr\u003eOrderly, airy, and well-focused, with good instrument separation and a stable sound scene.\u003c\/p\u003e\n\u003ch3 data-end=\"1056\" data-start=\"1021\"\u003e🎧 Use in Hi-Fi Amplifiers\u003c\/h3\u003e\n\u003cp class=\"p1\"\u003eIn hi-fi applications, the 12AY7 Tung-Sol is suitable for compatible circuits that require a low-noise, musical, and well-controlled tube. It can offer a more relaxed and natural presentation compared to higher-gain tubes, while maintaining excellent definition and great tonal balance.\u003c\/p\u003e\n\u003ch3 data-end=\"1387\" data-start=\"1349\"\u003e🎸 Use in Musical Amplifiers\u003c\/h3\u003e\n\u003cp class=\"p1\"\u003eIn guitar amplifiers, the 12AY7 is highly valued for reducing gain in preamp stages, increasing headroom, and achieving a more dynamic and controllable response. Tung-Sol production adds body, naturalness, and a pleasant vintage softness.\u003c\/p\u003e\n\u003ch3 data-end=\"1734\" data-start=\"1697\"\u003e🎯 Note for Audiophiles and Technicians\u003cstrong data-end=\"1747\" data-start=\"1737\"\u003e\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003cp class=\"p1\"\u003eThe price refers to \u003cspan class=\"s1\"\u003e\u003cb\u003ea single selected tube\u003c\/b\u003e\u003c\/span\u003e. The available tubes share the same manufacturing codes but are sold individually and not as a matched pair. \u003c\/p\u003e\n\u003cp class=\"p1\"\u003eA highly appealing Tung-Sol NOS NIB selection, designed for those who desire an authentic American 12AY7, tested and ready to offer a balanced, musical, and rich vintage sound.\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 \u003c\/span\u003e\u003c\/strong\u003eVa = 250V, Vg = -4V\u003cstrong\u003e\u003cbr\u003eAverage 100%:\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003eGm = 1700 ; Ia = 3.0 mA\u003cstrong\u003e\u003cbr\u003eTEST RESULT:\u003c\/strong\u003e STRONG\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTube 1\u003c\/strong\u003e:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSection 1\u003c\/strong\u003e: Gm = 1800 ; Ia = 3.4 mA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSection 2\u003c\/strong\u003e: Gm = 1800 ; Ia = 3.4 mA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTube 2\u003c\/strong\u003e:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSection 1\u003c\/strong\u003e: Gm = 1500 ; Ia = 2.7 mA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSection 2\u003c\/strong\u003e: Gm = 1600 ; Ia = 2.7 mA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cbr\u003e\n\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 and Noise:\u003c\/strong\u003e Low. Tested and suitable for hi-fi use, including phono stages, and in guitar amplifiers. \u003cstrong\u003eAlso suitable for V1.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eBalance:\u003c\/strong\u003e The sections are consistent and well-aligned, making the tube suitable for use as a phase inverter in hi-fi and instrumental applications.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eEmission Quality:\u003c\/strong\u003e Excellent – Very strong and stable emission, without fluctuations.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eShorts 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\n\u003cstrong\u003eCondition:\u003c\/strong\u003e\u003cspan\u003e NOS - NIB - New Old Stock, New In Box - Tested and working - Supplied in Original box.\u003c\/span\u003e\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunctionality: \u003c\/strong\u003ePerfectly operational.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAesthetic condition:\u003c\/strong\u003e\u003cspan\u003e Excellent – Lettering optimally preserved, minimal signs of age. See photos for details.\u003c\/span\u003e\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturing Code:\u003c\/strong\u003e 322HT3 - 322 → Tung-Sol Electric Inc., Newark 4, N. J. - \u003cmeta charset=\"utf-8\"\u003eHT3 undecipherable, identifiable by construction characteristics. Late 1950s - early 1960s\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\u003eDiscover why our tubes are different →\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"TUNG-SOL","offers":[{"title":"Default Title","offer_id":57481002615132,"sku":"03556Q","price":1043.0,"currency_code":"NOK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0616\/3775\/5127\/files\/1_2a1b6cd2-1182-4475-ad51-7e27f47e2264.jpg?v=1777384067","url":"https:\/\/vacuumtubestreasures.com\/en-no\/products\/12ay7-nos-nib-tung-sol-gray-plates-square-getter-amplitrex-tested-made-in-usa","provider":"Vacuum Tubes Treasures","version":"1.0","type":"link"}