{"product_id":"12ax7-ecc83-nos-amperex-bugle-boy-short-plates-halo-getter-tested-tube-made-in-holland-1","title":"12AX7 \/ ECC83 NOS AMPEREX Bugle Boy Short Plates Halo Getter Tested Tube MADE IN HOLLAND '60s","description":"\u003cp\u003e\u003cstrong\u003e12AX7 (ECC83) NOS AMPEREX\u003cmeta charset=\"utf-8\"\u003e Bugle Boy Short Plates Halo Getter Tested Tube\u003c\/strong\u003e \u003cstrong\u003eMADE IN HOLLAND '60s\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eDescription:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"265\" data-end=\"715\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003e The 12AX7 \/ ECC83 Amperex Bugle Boy with \u003cstrong data-end=\"255\" data-start=\"239\"\u003eshort plates\u003c\/strong\u003e and \u003cstrong data-end=\"273\" data-start=\"258\"\u003ehalo getter\u003c\/strong\u003e , produced in Heerlen, Holland, in the 1960s, represents one of the most legendary and sought-after versions of this tube. Supplied in \u003cstrong data-end=\"436\" data-start=\"413\"\u003eNOS (New Old Stock)\u003c\/strong\u003e condition and tested, it is famous for its unique combination of technical precision and refined musicality. The famous “Bugle Boy” logo printed on the glass is today an absolute icon in the hi-fi and guitar world, symbolizing a golden age of European production.\u003cbr\u003e\u003c\/p\u003e\n\u003cp data-start=\"954\" data-end=\"1001\"\u003e\u003cstrong data-start=\"956\" data-end=\"999\"\u003eTimbre characteristics and sound output\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-end=\"785\" data-start=\"708\"\u003e\u003cstrong data-end=\"717\" data-start=\"708\"\u003eBass\u003c\/strong\u003e : tight and fast, with impeccable articulation and excellent control.\u003c\/li\u003e\n\u003cli data-end=\"921\" data-start=\"788\"\u003e\u003cstrong data-end=\"796\" data-start=\"788\"\u003eMids\u003c\/strong\u003e : the real Amperex magic: warm, bright and airy, with extraordinary naturalness on vocals and acoustic instruments.\u003c\/li\u003e\n\u003cli data-end=\"1031\" data-start=\"924\"\u003e\u003cstrong data-end=\"932\" data-start=\"924\"\u003eHighs\u003c\/strong\u003e : silky and detailed, never aggressive, with an airy extension that gives brightness and breath.\u003c\/li\u003e\n\u003cli data-end=\"1122\" data-start=\"1034\"\u003e\u003cstrong data-end=\"1046\" data-start=\"1034\"\u003eDynamics\u003c\/strong\u003e : lively and responsive, with excellent micro-detail and consistently smooth rendering.\u003c\/li\u003e\n\u003cli data-end=\"1229\" data-start=\"1125\"\u003e\u003cstrong data-end=\"1139\" data-start=\"1125\"\u003eSoundstage\u003c\/strong\u003e : wide, three-dimensional and realistic, with impeccable separation of musical lines.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1525\" data-end=\"1843\"\u003e🎧 \u003cstrong data-start=\"1528\" data-end=\"1544\"\u003eHi-Fi use\u003c\/strong\u003e\u003cbr data-start=\"1544\" data-end=\"1547\"\u003e\u003cmeta charset=\"utf-8\"\u003eConsidered one of the best 12AX7s ever, it is perfect as a preamp tube for high-end amplifiers and hi-fi preamps. It provides tonal refinement, transparency, and a sense of naturalness that make it indispensable in the most demanding systems.\u003cbr\u003e\u003c\/p\u003e\n\u003cp data-start=\"1845\" data-end=\"2135\"\u003e🎸 \u003cstrong data-start=\"1848\" data-end=\"1881\"\u003eUse in music amplifiers\u003c\/strong\u003e\u003cbr data-start=\"1881\" data-end=\"1884\"\u003e\u003cmeta charset=\"utf-8\"\u003e In vintage guitar amps, the Bugle Boy Amperex d\u003cmeta charset=\"utf-8\"\u003e The '60s vibe is legendary: rich harmonics, bright mids, and a touch of sweetness that enhances both clean and slightly overdriven sounds. A must-have for anyone seeking authentic European vintage tone.\u003cbr\u003e\u003c\/p\u003e\n\u003cp data-start=\"2137\" data-end=\"2263\"\u003e🎯 \u003cstrong data-start=\"2140\" data-end=\"2172\"\u003eNote for audiophiles and technicians\u003c\/strong\u003e\u003cbr data-start=\"2172\" data-end=\"2175\"\u003e\u003cmeta charset=\"utf-8\"\u003e This NOS version with \u003cstrong data-end=\"1901\" data-start=\"1871\"\u003eshort plates and halo getter\u003c\/strong\u003e , produced and tested in the Heerlen factory, is extremely rare today. The original Bugle Boy logo makes it a collector's item, as well as an absolute reference for those who desire the highest sound quality.\u003cbr\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cstrong\u003eTest Results:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eValve tested on \u003cstrong\u003eAMPLITREX AT-1000\u003c\/strong\u003e Tube Tester:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eTest Conditions:\u003c\/strong\u003e \u003cspan\u003eVa = 250V ; Vg = -2V\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAverage 100%:\u003c\/strong\u003e\u003cspan\u003e\u0026nbsp;\u003c\/span\u003eGm = 1600 ; Ia = 1.2 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\u003eValve:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eSection 1:\u003c\/strong\u003e\u003cspan\u003e\u0026nbsp;\u003c\/span\u003eGm = 1600 ; Ia = 1.1 mA\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSection 2:\u003c\/strong\u003e\u003cspan\u003e\u0026nbsp;\u003c\/span\u003eGm = 1700 ; Ia = 1.2 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 Very\u003cmeta charset=\"utf-8\"\u003e Low. Tested and approved for use in hi-fi and guitar amplifiers. Compliant for use in V1.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eBalance:\u003c\/strong\u003e The sections show a slight deviation in values; excellent for use in hi-fi and musical applications (guitar) where balanced sections are not specifically required.\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 NOS - New Old Stock - Tested and working - Supplied 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\u003eCosmetic condition:\u003c\/strong\u003e Good – Lettering partially eroded, but still legible. Valve body in good condition. 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\u003eΔ5J1 ( Barely perceptible )\u003c\/span\u003e -\u003cmeta charset=\"utf-8\"\u003e \u003cspan\u003eΔ5J1\u003c\/span\u003e Δ → Heerlen (Netherlands), 5 (four digits) → 1965 - J → October - 7 → 1st week of the month\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":"AMPEREX","offers":[{"title":"Default Title","offer_id":55991732011356,"sku":"03272","price":2102.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0616\/3775\/5127\/files\/4_699f7d1c-4ba1-4f18-97b9-2cf0b61475b5.jpg?v=1763367377","url":"https:\/\/vacuumtubestreasures.com\/en-se\/products\/12ax7-ecc83-nos-amperex-bugle-boy-short-plates-halo-getter-tested-tube-made-in-holland-1","provider":"Vacuum Tubes Treasures","version":"1.0","type":"link"}