{"product_id":"e88cc-6dj8-philips-heerlen-special-quality-o-getter-tube-gold-pin-made-in-holland","title":"E88CC ( 6922 ) PHILIPS Special Quality Halo Getter Tube Gold Pin Made in Holland '66","description":"\u003cp\u003e\u003cstrong\u003eE88CC ( 6922 ) PHILIPS Special Quality Halo Getter Gold Pin\u003cmeta charset=\"utf-8\"\u003e Tube\u003c\/strong\u003e \u003cstrong\u003eMade in Holland '66\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eDescription:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"0\" data-end=\"1013\"\u003eThe \u003cstrong data-start=\"33\" data-end=\"73\"\u003eE88CC (6922) PHILIPS Special Quality\u003c\/strong\u003e represents one of the highest quality versions of the noval double triode series developed for professional, audio and high-precision instrument applications.\u003cbr data-start=\"234\" data-end=\"237\"\u003eProduced in the \u003cstrong data-start=\"265\" data-end=\"296\"\u003ePHILIPS plant in Heerlen (Holland)\u003c\/strong\u003e in \u003cstrong data-start=\"301\" data-end=\"317\"\u003eJanuary 1966\u003c\/strong\u003e , this valve belongs to the \u003cstrong data-start=\"360\" data-end=\"384\"\u003eSQ (Special Quality)\u003c\/strong\u003e selection, made with criteria of long life, electrical stability and low microphonics, intended for critical uses in measuring instruments, broadcast equipment and high-end hi-fi preamplifiers. \u003cbr data-start=\"584\" data-end=\"587\" data-is-only-node=\"\"\u003eThe construction with \u003cstrong data-start=\"606\" data-end=\"624\"\u003egrey plates\u003c\/strong\u003e , \u003cstrong data-start=\"626\" data-end=\"643\"\u003ehalo getters\u003c\/strong\u003e and \u003cstrong data-start=\"646\" data-end=\"664\"\u003egold feet\u003c\/strong\u003e testifies to the Dutch company's attention to the reliability and purity of the electrical contact, reducing oxidation and improving signal transmission over time.\u003cbr data-start=\"841\" data-end=\"844\"\u003eThe specimen described here has been tested on \u003cstrong data-start=\"889\" data-end=\"910\"\u003eAmplitrex AT-1000\u003c\/strong\u003e with \u003cstrong data-start=\"925\" data-end=\"935\"\u003eSTRONG\u003c\/strong\u003e result, guarantee of full efficiency and linear behavior on both sections.\u003c\/p\u003e\n\u003cp data-start=\"1020\" data-end=\"1647\"\u003e\u003cstrong data-start=\"1022\" data-end=\"1048\"\u003eSound Characteristics\u003c\/strong\u003e\u003cbr data-start=\"1048\" data-end=\"1051\"\u003e\u003cstrong data-start=\"1051\" data-end=\"1061\"\u003eBass:\u003c\/strong\u003e precise, taut and quick in response, with excellent holding even in complex passages. \u003cbr data-start=\"1156\" data-end=\"1159\"\u003e\u003cstrong data-start=\"1159\" data-end=\"1168\"\u003eMids:\u003c\/strong\u003e silky, transparent, and natural; voices are present but never intrusive, with a typically “neutral” and musical timbre.\u003cbr data-start=\"1295\" data-end=\"1298\"\u003e\u003cstrong data-start=\"1298\" data-end=\"1307\"\u003eHighs:\u003c\/strong\u003e extended, bright, and free of harshness. The balance between detail and sweetness is exemplary, in the best Heerlen tradition.\u003cbr data-start=\"1436\" data-end=\"1439\"\u003e\u003cstrong data-start=\"1439\" data-end=\"1452\" data-is-only-node=\"\"\u003eDynamic:\u003c\/strong\u003e lively and proportionate, capable of rendering micro-contrasts with great fluidity.\u003cbr data-start=\"1534\" data-end=\"1537\"\u003e\u003cstrong data-start=\"1537\" data-end=\"1552\"\u003eSoundstage:\u003c\/strong\u003e wide, stable and three-dimensional, with excellent channel separation and depth of field.\u003c\/p\u003e\n\u003cp data-start=\"1654\" data-end=\"1978\"\u003e🎧 \u003cstrong data-start=\"1657\" data-end=\"1694\"\u003eUse in Hi-Fi Stereo Amplifiers\u003c\/strong\u003e\u003cbr data-start=\"1694\" data-end=\"1697\"\u003eIdeal for high-end preamplifiers, DACs, phono stages and driver circuits where neutrality and tonal accuracy are critical. \u003cbr data-start=\"1841\" data-end=\"1844\"\u003eExcellent compatibility with Conrad Johnson, Audio Research, Counterpoint, EAR, Copland, and other European school systems.\u003c\/p\u003e\n\u003cp data-start=\"1985\" data-end=\"2221\"\u003e🎸 \u003cstrong data-start=\"1988\" data-end=\"2021\"\u003eUse in Music Amplifiers\u003c\/strong\u003e\u003cbr data-start=\"2021\" data-end=\"2024\"\u003eIt is also highly appreciated in professional tube preamplifiers and heads, where it offers a detailed and noise-free sound, with a perfect balance between clarity and harmonic warmth.\u003c\/p\u003e\n\u003cp data-start=\"2228\" data-end=\"2655\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e🎯 \u003cstrong data-start=\"2231\" data-end=\"2263\"\u003eNote for Audiophiles and Technicians\u003c\/strong\u003e\u003cbr data-start=\"2263\" data-end=\"2266\"\u003eThe acronym \u003cstrong data-start=\"2275\" data-end=\"2309\"\u003e“E88CC \/ 6922 Special Quality”\u003c\/strong\u003e identifies a long-life version (over 10,000 hours), with reinforced grille, gold-plated feet and selected tolerances. \u003cbr data-start=\"2431\" data-end=\"2434\"\u003eThe \u003cstrong data-start=\"2448\" data-end=\"2464\"\u003eHeerlen 1966\u003c\/strong\u003e production is among the most sought after for its sonic balance and impeccable construction, becoming a reference for those who want a \u003cstrong data-start=\"2605\" data-end=\"2654\"\u003etransparent, precise and musically refined\u003c\/strong\u003e valve.\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\u0026nbsp;\u003c\/span\u003e\u003c\/strong\u003eVa = 90V, Vg = -1.2V \u003cstrong\u003e\u003cbr\u003eAverage 100%:\u003cspan\u003e\u0026nbsp;\u003c\/span\u003e\u003c\/strong\u003eGm = 12.5 ; Ia = 15 mA \u003cstrong\u003e\u003cbr\u003eTEST RESULT:\u003c\/strong\u003e STRONG\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValve\u003c\/strong\u003e :\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eSection 1\u003c\/strong\u003e : Gm = 11.0; Ia = 10.6 mA\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSection 2\u003c\/strong\u003e : Gm = 11.0; Ia = 10.0 mA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003cbr\u003e\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:\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\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 Vintage tubes - Tested and in perfect working order. Shipped 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 \u003cspan\u003eGood – Lettering partially eroded, but still legible. Valve body in good condition. See photos for details.\u003c\/span\u003e\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eManufacturing Code:\u003c\/strong\u003e 7LB ⊿6A3 → 7Lx indicates an E88CC with the sequential progression of x - ⊿6A3 ⊿ → Heerlen (Holland), 6 (out of four digits) → 1966 - A → January - 3 → 3rd 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\n\u003cp\u003e\u0026nbsp;\u003c\/p\u003e","brand":"PHILIPS","offers":[{"title":"Default Title","offer_id":42982811926775,"sku":"00711","price":12100.0,"currency_code":"ALL","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0616\/3775\/5127\/files\/1_0fab8742-607e-419c-9cbd-f3cfafee7d9c.jpg?v=1761579366","url":"https:\/\/vacuumtubestreasures.com\/en-al\/products\/e88cc-6dj8-philips-heerlen-special-quality-o-getter-tube-gold-pin-made-in-holland-en","provider":"Vacuum Tubes Treasures","version":"1.0","type":"link"}