{"product_id":"6bq5-el84-rca-nos-nib-gray-plates-disc-halo-getter-tested-pair-tubes-made-in-usa-66","title":"6BQ5 ( EL84 ) RCA NOS NIB Gray Plates Disc Halo Getter Tested Pair Tubes Made in USA '66","description":"\u003cp\u003e\u003cstrong\u003e6BQ5 ( EL84 ) RCA NOS NIB Gray Plates Disc Halo Getter Tested Pair Tubes\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eMade in USA '66\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eProduced by RCA in the U.S.A.\u003cbr\u003eLogos worn as per photo\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eEL84 RCA Gray Plates are renowned for their ability to deliver warm, detailed tones while maintaining a balanced and precise response. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eExcellent for any vintage or modern amplifier with single tube Bias adjustment or using a single 6BQ5 (EL84) for each channel.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eThis pair is not suitable for Push-Pull amplifiers.\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eTested on AMPLITREX AT-1000 Tube tester:\u003c\/strong\u003e \u003cbr\u003eVoltage Test: Va = 250V, Vg2 = 250V, Vg1 = -7.3V\u003cbr\u003eAverage 100% Gm = 11.3 ; Ia = 48 mA\u003cbr\u003e\u003cstrong\u003eTEST RESULT: VERY STRONG\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eValve 1: Gm 11.4 ; Ia = 58 mA\u003cbr\u003eValve 2: Gm 10.3; Ia = 36 mA\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003eFurther tests performed:\u003cbr\u003eMicrophony Test\u003cbr\u003eEmission Quality\u003cbr\u003eShort Circuit Test\u003cbr\u003eGAS Test\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\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\u003eScopra perché le nostre valvole sono diverse →\u003c\/strong\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"RCA","offers":[{"title":"Default Title","offer_id":49238792700252,"sku":"02381","price":69.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0616\/3775\/5127\/files\/3_17794b9d-c9b2-4961-8a1a-64ed61ee3a84.jpg?v=1724236695","url":"https:\/\/vacuumtubestreasures.com\/en-de\/products\/6bq5-el84-rca-nos-nib-gray-plates-disc-halo-getter-tested-pair-tubes-made-in-usa-66-en","provider":"Vacuum Tubes Treasures","version":"1.0","type":"link"}