{"product_id":"6eu7-sylvania-nos-nib-long-gray-plates-halo-getter-tested-pair-tubes-made-in-usa","title":"6EU7 NOS NIB SYLVANIA Matched Pair – Long Gray Plates Halo Getter USA","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003e6EU7 SYLVANIA NOS NIB Long Gray Plates Halo Getter Matched Pair Tubes\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eMADE IN USA\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMade by SYLVANIA in the United States of America\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e \u003cstrong\u003eThese 6EU7 SYLVANIA valves are renowned for offering a particularly balanced and musical sound. Thanks to the particular shape of the plates, these valves are distinguished by a warm and detailed timbre, with a precise and natural reproduction of the medium frequencies. The highs are soft and never strident. , while the low frequencies are well controlled and round, making them ideal for hi-fi amplifiers and high fidelity audio applications.\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValve tested on AMPLITREX AT-1000 Tube tester:\u003c\/strong\u003e\u003cbr\u003eVoltage Test: Va = 250V, Vg = -2V\u003cbr\u003eAverage 100% Gm = 1.6 ; Ia = 1.2 mA\u003cbr\u003e\u003cstrong\u003eTEST RESULT: VERY STRONG\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eValve 1:\u003cbr\u003eSection 1: Gm = 1.7 ; Ia = 1.1 mA\u003cbr\u003eSection 2: Gm = 1.6 ; Ia = 1.0 mA\u003cbr\u003eValve 2:\u003cbr\u003eSection 1: Gm = 1.7 ; Ia = 1.2 mA\u003cbr\u003eSection 2: Gm = 1.4 ; Ia = 0.9 mA\u003c\/p\u003e\n\u003cp\u003eFurther tests performed:\u003cbr\u003eMicrophone Test\u003cbr\u003eEmission Quality\u003cbr\u003eShort Circuit Test\u003cbr\u003eGAS Test\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\n\u003cp\u003eShipping with protected packaging for greater safety.\u003cbr\u003eRecycled and recyclable paper packaging. Brown paper sealing tape - ECO-KRAFT\u003cbr\u003eEco-friendly - SOLVENT FREE\u003cbr\u003e\u003c\/p\u003e","brand":"SYLVANIA","offers":[{"title":"Default Title","offer_id":49436556788060,"sku":"02449M","price":10700.0,"currency_code":"ALL","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0616\/3775\/5127\/files\/1_4e5b0d37-e600-4ade-b47c-d4c1ff805f01.jpg?v=1727425102","url":"https:\/\/vacuumtubestreasures.com\/en-al\/products\/6eu7-sylvania-nos-nib-long-gray-plates-halo-getter-tested-pair-tubes-made-in-usa","provider":"Vacuum Tubes Treasures","version":"1.0","type":"link"}