{"product_id":"5814a-12au7wa-e82cc-ge-five-stars-matched-trio-gray-plates-halo-getter-made-in-usa-66","title":"5814A \/ 12AU7WA \/ E82CC GE Five Stars Matched Trio Gray Plates Disc Getter Made in USA '66","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003e5814A \/ 12AU7WA \/ E82CC GE Five Stars Matched Trio Gray Plates Disc Getter Made in USA '66\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUltra Low Noise \u0026amp; Microphonics –\u003cspan\u003e VERY STRONG - Vintage General Electric Production\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eTest Results:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eTube tested on\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAMPLITREX AT-1000\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003eTube Tester:\u003c\/p\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eTest Conditions:\u003c\/strong\u003e\u003cspan\u003e Va = 250V ; Vg = -8.5V\u003c\/span\u003e\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003e100% Average:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eGm = 2200 ; Ia = 10.5 mA\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eTest Result:\u003c\/strong\u003e VERY STRONG\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTube #1:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eSection 1:\u003c\/strong\u003e Gm = 2200 ; Ia = 11.0 mA\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eSection 2:\u003c\/strong\u003e Gm = 2100 ; Ia = 10.2 mA\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTube #2:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eSection 1:\u003c\/strong\u003e Gm = 2100 ; Ia = 10.0 mA\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eSection 2:\u003c\/strong\u003e Gm = 2100 ; Ia = 10.2 mA \u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTube #3:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eSection 1:\u003c\/strong\u003e Gm = 2040 ; Ia = 9.8 mA\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eSection 2:\u003c\/strong\u003e Gm = 2100 ; Ia = 10.4 mA\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003cstrong\u003eAdditional Tests Performed:\u003c\/strong\u003e\u003c\/div\u003e\n\u003cul\u003e\n\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eBurn-in \/ Stability Test:\u003c\/strong\u003e 48h – OK\u003c\/span\u003e\u003c\/li\u003e\n\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eMicrophonics:\u003c\/strong\u003e Very Low. Tested and suitable for use in hi-fi equipment and guitar amplifiers, even in the most sensitive audio stages.\u003c\/span\u003e\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eNoise: \u003c\/strong\u003eLow and well-controlled. Quiet operation in hi-fi and musical amplifiers in the intended positions.\u003c\/li\u003e\n\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eBalance:\u003c\/strong\u003e Very good. The sections are consistent and well-aligned, making the tube also suitable for use as a phase inverter in hi-fi and instrumental applications.\u003c\/span\u003e\u003c\/li\u003e\n\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\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eShorts and GAS:\u003c\/strong\u003e Absent.\u003c\/span\u003e\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eDescription:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003ePrecious \u003cstrong\u003eMatched Trio of 5814A \/ 12AU7WA \/ E82CC General Electric Five Stars\u003c\/strong\u003e, authentic American production \u003cstrong\u003eMade in USA from 1966\u003c\/strong\u003e, characterized by \u003cstrong\u003eGray Plates with Halo Getter\u003c\/strong\u003e construction. The \u003cstrong\u003eGE Five Stars\u003c\/strong\u003e series identifies a professional, high-reliability production, particularly valued for its stability, durability, and build quality, and highly sought after today in high-end vintage audio applications.\u003c\/p\u003e\n\u003cp\u003eThe manufacturing code \u003cstrong\u003eRV\u003c\/strong\u003e places the production in \u003cstrong\u003eNovember 1966\u003c\/strong\u003e and identifies the historic \u003cstrong\u003eGeneral Electric Company, Syracuse, New York\u003c\/strong\u003e. The three tubes belong to the same type and have been selected as a \u003cstrong\u003eMatched Trio\u003c\/strong\u003e based on the close correspondence of electrical values.\u003c\/p\u003e\n\u003cp\u003eThe trio has been carefully tested in our laboratory using the \u003cstrong\u003eAmplitrex AT-1000 Tube Tester\u003c\/strong\u003e, obtaining a \u003cstrong\u003eVERY STRONG\u003c\/strong\u003e classification. The transconductance values of the six sections are extremely close, ranging between \u003cstrong\u003eGm 2040 and 2200\u003c\/strong\u003e, with anode currents between \u003cstrong\u003e9.8 and 11.0 mA\u003c\/strong\u003e. A particularly uniform result, which highlights an excellent electrical state and remarkable consistency among the three specimens.\u003c\/p\u003e\n\u003cp\u003eAll tubes have also passed a \u003cstrong\u003e48-hour Burn-in \/ Stability Test\u003c\/strong\u003e and have been selected as \u003cstrong\u003eUltra Low Noise \u0026amp; Microphonics\u003c\/strong\u003e, with low and well-controlled noise. They are therefore particularly suitable even for the \u003cstrong\u003emost sensitive audio stages\u003c\/strong\u003e, including V1, preamplifiers, and compatible phono stages. The internal balance is very good, making the specimens also suitable for use as a \u003cstrong\u003ephase inverter\u003c\/strong\u003e in compatible hi-fi and instrumental applications.\u003c\/p\u003e\n\u003cp\u003eSonically, vintage \u003cstrong\u003eGE Five Stars 5814A\u003c\/strong\u003e are appreciated for a \u003cstrong\u003ebalanced, precise, and musical\u003c\/strong\u003e presentation, with natural and well-defined mids, controlled bass, and a clean and open high range. The combination of professional selection, low noise, and excellent consistency between sections makes this trio particularly interesting for stereo systems and equipment that require multiple tubes with uniform electrical behavior.\u003c\/p\u003e\n\u003cp\u003eIdeal for \u003cstrong\u003ehi-fi preamplifiers, integrated amplifiers, line stages, DACs and tube buffers, phase inverters, professional equipment, and guitar amplifiers\u003c\/strong\u003e designed for \u003cstrong\u003e5814A \/ 12AU7WA \/ E82CC\u003c\/strong\u003e and compatible equivalents.\u003c\/p\u003e\n\u003cp\u003eThe tubes are \u003cstrong\u003eVintage\u003c\/strong\u003e, carefully tested, and perfectly functional. Cosmetic conditions are \u003cstrong\u003egood\u003c\/strong\u003e, with partially eroded but still legible markings and a well-preserved tube body. They are supplied in our custom boxes for optimal protection.\u003c\/p\u003e\n\u003cp\u003eA selected \u003cstrong\u003eMatched Trio GE Five Stars 5814A \/ 12AU7WA \/ E82CC Gray Plates Halo Getter from 1966\u003c\/strong\u003e, genuinely tested by \u003cstrong\u003eVacuum Tubes Treasures\u003c\/strong\u003e, with \u003cstrong\u003eVERY STRONG, Ultra Low Noise \u0026amp; Microphonics and exceptionally consistent electrical values\u003c\/strong\u003e: a particularly valuable solution for those seeking three authentic vintage General Electric professional tubes perfectly selected for audio use.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cstrong\u003eConditions:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eCondition:\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003eVintage - Tested and functional - 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\u003ePerfectly operational.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eCosmetic condition:\u003c\/strong\u003e\u003cspan\u003e Good – Markings partially eroded, but still legible. Tube body in good condition. See photos for details.\u003c\/span\u003e\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eManufacturing Code:\u003c\/strong\u003e\u003cspan\u003e RV → two-letter code → production November 1966 → General Electric Company, Syracuse 1, N. Y.\u003c\/span\u003e\n\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003cp\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":"GE","offers":[{"title":"Default Title","offer_id":59051528618332,"sku":"03792R","price":164.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0616\/3775\/5127\/files\/10_dd72c094-7a08-400c-8174-c24e24490fcf.jpg?v=1788866149","url":"https:\/\/vacuumtubestreasures.com\/en-ca\/products\/5814a-12au7wa-e82cc-ge-five-stars-matched-trio-gray-plates-halo-getter-made-in-usa-66","provider":"Vacuum Tubes Treasures","version":"1.0","type":"link"}