{"product_id":"12ax7-ecc83-nos-nib-amperex-bugle-boy-short-plates-halo-getter-tested-tube-made-in-holland-60s","title":"12AX7 \/ ECC83 NOS NIB AMPEREX Bugle Boy Short Plates Halo Getter Tested Tube MADE IN HOLLAND '60s","description":"\u003cp\u003e\u003cstrong\u003e12AX7 ( ECC83 ) NOS NIB AMPEREX \u003cmeta charset=\"utf-8\"\u003eBugle 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\"\u003eThe 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 NIB (New Old Stock, New In Box)\u003c\/strong\u003e condition and tested, it is famous for its unique combination of technical precision and refined musicality. The renowned “Bugle Boy” mark 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\"\u003eTonal Characteristics and Sound Performance\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-end=\"785\" data-start=\"708\"\u003e\n\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\n\u003cstrong data-end=\"796\" data-start=\"788\"\u003eMids\u003c\/strong\u003e: the true 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\n\u003cstrong data-end=\"932\" data-start=\"924\"\u003eHighs\u003c\/strong\u003e: silky and detailed, never aggressive, with an airy extension that adds brilliance and spaciousness.\u003c\/li\u003e\n\u003cli data-end=\"1122\" data-start=\"1034\"\u003e\n\u003cstrong data-end=\"1046\" data-start=\"1034\"\u003eDynamics\u003c\/strong\u003e: lively and prompt, with excellent micro-detail and consistently smooth performance.\u003c\/li\u003e\n\u003cli data-end=\"1229\" data-start=\"1125\"\u003e\n\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 preamplifier tube for high-end hi-fi amplifiers and preamps. It imparts tonal refinement, transparency, and a sense of naturalness that makes 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\"\u003eMusical Amplifier Use\u003c\/strong\u003e\u003cbr data-start=\"1881\" data-end=\"1884\"\u003e\u003cmeta charset=\"utf-8\"\u003eIn vintage guitar amps, the 1960s Amperex Bugle Boy is legendary: rich harmonics, bright mids, and a touch of sweetness that enhances both clean and slightly saturated sounds. A must-have for those 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\"\u003eThis NOS NIB version with \u003cstrong data-end=\"1901\" data-start=\"1871\"\u003eshort plates and halo getter\u003c\/strong\u003e, produced in the Heerlen factory and tested, is extremely rare today. The original Bugle Boy logo makes it a collector's tube, as well as an absolute benchmark for those seeking maximum sound quality.\u003cbr\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cstrong\u003eTest Results:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eTube tested on \u003cstrong\u003eAMPLITREX AT-1000 \u003c\/strong\u003eTube Tester:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest Conditions:\u003c\/strong\u003e\u003cspan\u003e Va = 250V ; Vg = -2V\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAverage 100%:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eGm = 1600 ; Ia = 1.2 mA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest Result:\u003c\/strong\u003e VERY STRONG\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTube:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSection 1:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eGm = 1600 ; Ia = 1.2 mA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSection 2:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eGm = 1500 ; Ia = 0.9 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\"\u003eLow. Tested and compliant 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 Sections show a slight deviation in values; excellent for use in hi-fi and musical (guitar) applications where balanced sections are not specifically required.\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\u003eCondition:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\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\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\u003eCosmetic Condition:\u003c\/strong\u003e Excellent – Markings well-preserved, minimal signs of age. See photos for details.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturing Code:\u003c\/strong\u003e I65 Δ3G5 → I6x indicates an ECC83 with the sequential progression of x, where the increment of x indicates manufacturing changes - \u003cmeta charset=\"utf-8\"\u003eΔ3G5 Δ → Heerlen (Holland), 3 (out of four digits) → 1963 - G → July - 5 → 5th week of the month\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003ca rel=\"noopener\" title=\"Perché le nostre valvole sono diverse – il protocollo VTT che migliora suono, affidabilità e durata\" 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":"AMPEREX","offers":[{"title":"Default Title","offer_id":57228851315036,"sku":"03492-ONSPEC","price":1590.0,"currency_code":"CNY","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0616\/3775\/5127\/files\/1_4b75f690-f9c3-4aae-b7de-623a6e349268.jpg?v=1774969806","url":"https:\/\/vacuumtubestreasures.com\/en-cn\/products\/12ax7-ecc83-nos-nib-amperex-bugle-boy-short-plates-halo-getter-tested-tube-made-in-holland-60s","provider":"Vacuum Tubes Treasures","version":"1.0","type":"link"}