{"product_id":"jan-crc-83-vt-83-nos-rca-black-plates-hanging-filaments-foil-getter-tube-rectifier-made-in-usa-44-copia","title":"6CA4 ( EZ81 ) NOS NIB RCA Gray Plates Halo Getter Matched Pair Tubes Rectifiers Made in USA '66","description":"\u003cp\u003e\u003cstrong\u003e6CA4 ( EZ81 ) NOS NIB RCA Gray Plates Halo Getter Matched Pair Tubes Rectifiers Made in USA '66\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eDescription:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e6CA4 (EZ81) NOS NIB RCA Gray Plates Halo Getter\u003c\/strong\u003e , made in the USA in 1966, are rectifiers renowned for their reliability and distinctive sonic contribution. This \u003cstrong\u003ematched pair\u003c\/strong\u003e is ideal for vintage tube amplifiers and high-end Hi-Fi applications. high, offering a balanced and musical sound reproduction, with the characteristic warm timbre of RCA valves.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eLows:\u003c\/strong\u003e Deep and well-defined, with a tight and controlled response that provides a solid and stable sonic foundation. Ideal for genres that require precise and articulated dynamics.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMidrange:\u003c\/strong\u003e Warm and transparent, with a harmonic richness that enhances vocals and acoustic instruments, offering an immersive and natural sound experience.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHighs:\u003c\/strong\u003e Clean and crisp, with crystal clarity that brings out the finest details without being fatiguing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe \u003cstrong\u003e6CA4 RCA Gray Plates\u003c\/strong\u003e stand out for their ability to maintain a wide and well-focused soundstage, with fluid dynamics and excellent instrument separation. This matched set is an excellent choice for those seeking a combination of musicality and sonic accuracy in audio applications. high level.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cstrong\u003eTest Results:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eValve tested on Funke W19 Tube Tester:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eTest Conditions:\u003c\/strong\u003e Va = 60V, Vf = 6.3V\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAverage 100%:\u003c\/strong\u003e Ia = 74 mA\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eTest Result:\u003c\/strong\u003e VERY STRONG\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eValve 1:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eSection 1:\u003c\/strong\u003e Ia = 78 mA\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSection 2:\u003c\/strong\u003e Ia = 80 mA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eValve 2:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eSection 1:\u003c\/strong\u003e Ia = 78 mA\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSection 2:\u003c\/strong\u003e Ia = 80 mA\u003c\/li\u003e\n\u003c\/ul\u003e\n\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\u003eCosmetic Condition:\u003c\/strong\u003e NOS - NIB - New Old Stock, New In Box - Tested and working - In original box.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eFunctionality:\u003c\/strong\u003e Fully functional.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eManufacturing Code:\u003c\/strong\u003e NR = January 1966\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","brand":"RCA","offers":[{"title":"Default Title","offer_id":53725884318044,"sku":"02664","price":8300.0,"currency_code":"ALL","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0616\/3775\/5127\/files\/2_93e97de4-7d23-44e5-bb84-0d67fa738fe4.jpg?v=1735834185","url":"https:\/\/vacuumtubestreasures.com\/en-al\/products\/jan-crc-83-vt-83-nos-rca-black-plates-hanging-filaments-foil-getter-tube-rectifier-made-in-usa-44-copia","provider":"Vacuum Tubes Treasures","version":"1.0","type":"link"}