{"product_id":"12at7-ecc81-ge-nos-nib-wing-gray-plates-o-getter-tested-tube-made-in-usa","title":"ECC81 ( 12AT7 ) GE NOS NIB Gray Plates Halo Getter Tested Tube MADE IN USA","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003eECC81 ( 12AT7 ) GE NOS NIB Gray Plates Halo Getter Tested Tube\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eMADE IN USA\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eManufactured by General Electric in the United States of America\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThese tubes deliver a sound characterized by remarkable clarity and detail, with a well-balanced midrange and an airy and bright high-frequency extension. This version with gray plates has a slightly warm tone, without losing definition, making it perfect for those seeking a balance between precision and musicality. Ideal for Hi-Fi audio applications and musical instruments, they guarantee rich and articulated sound reproduction.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTested on AMPLITREX AT-1000 Tube tester:\u003c\/strong\u003e\u003cbr\u003eVoltage Test: Va = 250V, Vg = -2V\u003cbr\u003eAverage 100% Gm = 5.5 ; Ia = 10 mA\u003cbr\u003e\u003cstrong\u003eTEST RESULT: VERY STRONG\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSection 1: Gm = 6.9 ; Ia = 8.8 mA\u003cbr\u003eSection 2: Gm = 5.5 ; Ia = 9.8 mA\u003c\/p\u003e\n\u003cp\u003eFurther tests performed:\u003cbr\u003eMicrophone Test\u003cbr\u003eEmission Quality\u003cbr\u003eShort Circuit Test\u003cbr\u003eGAS Test\u003cbr\u003e\u003c\/p\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":"GE","offers":[{"title":"Default Title","offer_id":49424330719580,"sku":"02439","price":3000.0,"currency_code":"ALL","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0616\/3775\/5127\/files\/3_1640de2f-b0a1-4477-b207-16c311eab6d4.jpg?v=1727257957","url":"https:\/\/vacuumtubestreasures.com\/en-al\/products\/12at7-ecc81-ge-nos-nib-wing-gray-plates-o-getter-tested-tube-made-in-usa","provider":"Vacuum Tubes Treasures","version":"1.0","type":"link"}