{"product_id":"jan-6922-amperex-usa-gold-pin-large-halo-getter-made-in-usa-late-1960s-production-hicksville-era","title":"JAN 6922 NOS AMPEREX USA – Gold Pin – Large Halo Getter – Made in USA, late 1960s production, Hicksville era","description":"\u003cp\u003e\u003cstrong\u003eJAN 6922 NOS AMPEREX USA – Gold Pin – Large Halo Getter – Made in USA, late 1960s production, Hicksville era\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003e \u003cstrong\u003eDescription:\u003c\/strong\u003e\n\u003c\/h3\u003e\n\n\u003cp class=\"p1\"\u003e This 6922 \/ E88CC JAN AMPEREX is an authentic late 1960's American production, made in the USA during the Hicksville period.\u003c\/p\u003e\n\n\u003cp class=\"p1\"\u003e The construction with \u003cspan class=\"s1\"\u003e\u003cb\u003eLarge Halo Getter\u003c\/b\u003e\u003c\/span\u003e , \u003cspan class=\"s1\"\u003e\u003cb\u003egold pins\u003c\/b\u003e\u003c\/span\u003e and \u003cspan class=\"s1\"\u003e\u003cb\u003eJAN (Joint Army Navy)\u003c\/b\u003e\u003c\/span\u003e military marking identifies a selected version compliant with more stringent specifications than the standard consumer 6DJ8.\u003c\/p\u003e\n\n\u003cp class=\"p1\"\u003e The internal structure, typically American, highlights:\u003c\/p\u003e\n\n\u003cul\u003e\n\n\u003cli class=\"p1\"\u003e Sturdy and well-sized plates\u003c\/li\u003e\n\n\u003cli class=\"p1\"\u003e Solid internal supports\u003c\/li\u003e\n\n\u003cli class=\"p1\"\u003e Thick and stable mica\u003c\/li\u003e\n\n\u003cli class=\"p1\"\u003e Construction oriented towards reliability and durability\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003cp class=\"p1\"\u003e The tube is \u003cspan class=\"s1\"\u003e\u003cb\u003eNOS (New Old Stock)\u003c\/b\u003e\u003c\/span\u003e and tested on \u003cspan class=\"s1\"\u003e\u003cb\u003eAmplitrex AT-1000\u003c\/b\u003e\u003c\/span\u003e with \u003cspan class=\"s1\"\u003e\u003cb\u003eSTRONG\u003c\/b\u003e\u003c\/span\u003e result, perfectly balanced sections.\u003c\/p\u003e\n\n \u003cp class=\"p1\"\u003eVery well balanced sections, 100% conductance, stable electrical behavior.\u003c\/p\u003e\n\n\u003ch3\u003e \u003cstrong\u003eSound Characteristics\u003c\/strong\u003e\n\u003c\/h3\u003e\n\n\u003cp\u003e \u003cstrong\u003eBass:\u003c\/strong\u003e Solid and well-structured. The low end is fuller than European Heerlen productions, with greater density and control.\u003c\/p\u003e\n\n\u003cp\u003e \u003cstrong\u003eMids:\u003c\/strong\u003e Natural and full, with a slightly more textured sound than the classic European \"bright\" sound. Excellent vocal reproduction and credible timbre.\u003c\/p\u003e\n\n\u003cp\u003e \u003cstrong\u003eHighs:\u003c\/strong\u003e Extended but never aggressive. The top end is clean, with fine grain and good micro-information.\u003c\/p\u003e\n\n\u003cp\u003e \u003cstrong\u003eDynamics:\u003c\/strong\u003e Very stable and linear. Excellent transient response, consistent behavior even in high-resolution systems.\u003c\/p\u003e\n\n\u003cp\u003e \u003cstrong\u003eSoundstage:\u003c\/strong\u003e Well anchored and realistic scene, with good depth and correct separation of the sound planes.\u003c\/p\u003e\n\n\u003ch3\u003e \u003cstrong\u003e🎧 Use in Hi-Fi Amplifiers\u003c\/strong\u003e\n\u003c\/h3\u003e\n\n\u003cp\u003e Ideal for:\u003c\/p\u003e\n\n\u003cul\u003e\n\n\u003cli\u003e Quality phono stages\u003c\/li\u003e\n\n\u003cli\u003e Line stage preamplifiers\u003c\/li\u003e\n\n\u003cli\u003e Tube DACs\u003c\/li\u003e\n\n\u003cli\u003e Headphone amplifiers\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n \u003cp\u003eThe JAN version is particularly appreciated for its stability and silence.\u003c\/p\u003e\n\n\u003ch3\u003e \u003cstrong\u003e🎯 Note for audiophiles and technicians\u003c\/strong\u003e\n\u003c\/h3\u003e\n\n\u003cul\u003e\n\n\u003cli\u003e American production late 60s\u003c\/li\u003e\n\n\u003cli\u003e Military version JAN\u003c\/li\u003e\n\n\u003cli\u003e Gold pins\u003c\/li\u003e\n\n\u003cli\u003e Large halo getter\u003c\/li\u003e\n\n\u003cli\u003e Amplitrex test documented\u003c\/li\u003e\n\n\u003cli\u003e Balanced sections\u003c\/li\u003e\n\n\u003cli\u003e Robust and reliable construction\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003cp\u003e A select American 6922, designed for those who want a balanced, stable sound with more body than the European variants.\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 Tested on \u003cstrong\u003eAMPLITREX AT-1000\u003c\/strong\u003e Tube Tester\u003c\/p\u003e\n\n\u003cp\u003e \u003cstrong\u003eVoltage Test:\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003eVa = 90V ; Vg = -1.2V \u003cstrong\u003e\u003cbr\u003eAverage 100%:\u003c\/strong\u003e Gm = 12.5 ; Ia = 15.0 mA \u003cstrong\u003e\u003cbr\u003eTEST RESULT:\u003c\/strong\u003e VERY STRONG\u003c\/p\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 : Gm = 12.5; Ia = 11.8 mA\u003c\/li\u003e\n\n\u003cli\u003e\n\n \u003cstrong\u003eSection 2\u003c\/strong\u003e : Gm = 12.5; Ia = 12.0 mA\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003cdiv\u003e\n\n\u003cstrong\u003e\u003c\/strong\u003e\u003cbr\u003e\n\n\u003c\/div\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 Low. Tested and approved for use in hi-fi, phono stages, and guitar amplifiers, including V1.\u003c\/span\u003e\u003c\/li\u003e\n\n\u003cli\u003e \u003cspan\u003e\u003cstrong\u003eBalance:\u003c\/strong\u003e The sections are coherent and well aligned, making the valve also suitable for use as a phase inverter in hi-fi and instrumental applications.\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 - New Old Stock - Tested and working - Supplied in our custom box for optimal protection.\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\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\n\n\u003c\/li\u003e\n\n\u003cli\u003e \n\u003cstrong\u003eManufacturing Code:\u003c\/strong\u003e Δ9A4 → Δ9A4\u003cmeta charset=\"utf-8\"\u003e Δ → Heerlen (Holland), 9 (four digits) → 1969 - A → January - 4 → 4th week of the month\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\n\n\u003cp\u003e\u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003e\u003c\/p\u003e","brand":"AMPEREX","offers":[{"title":"Default Title","offer_id":56776779104604,"sku":"03432","price":1654.0,"currency_code":"NOK","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0616\/3775\/5127\/files\/2_31e56a7e-c5ff-4d5a-9312-3a90269947ac.jpg?v=1771586115","url":"https:\/\/vacuumtubestreasures.com\/en-no\/products\/jan-6922-amperex-usa-gold-pin-large-halo-getter-made-in-usa-late-1960s-production-hicksville-era","provider":"Vacuum Tubes Treasures","version":"1.0","type":"link"}