{"product_id":"5y3gt-5z2p-ge-nos-black-plates-d-getter-tube-rectifier-made-in-usa","title":"5Y3GT \/ 5Z2P GE NOS Black Plate G-D Getter Tube Rectifier Made in USA","description":"\u003ch3\u003e\u003cstrong\u003e5Y3GT \/ 5Z2P GE NOS Gray Plates D Getter Tube Rectifier Made in USA\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003eFunke W19 Tested – VERY STRONG - Vintage American General Electric Production\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eTest Results:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eTube tested on \u003cstrong\u003eFunke W19 \u003c\/strong\u003eTube Tester:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eTest Conditions:\u003c\/strong\u003e\u003cspan\u003e Va = 100V ; Vf = 5V\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e100% Average:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u0026nbsp;Ia = 77.5 mA\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eTest Result:\u003c\/strong\u003e VERY STRONG\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTube :\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eSection 1:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIa = 90 mA\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSection 2:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIa = 87 mA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003cstrong\u003eAdditional Tests Performed:\u003c\/strong\u003e\u003c\/div\u003e\n\u003cul\u003e\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\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eShort Circuits and GAS:\u003c\/strong\u003e Absent.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eDescription:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-pm-slice=\"1 1 []\"\u003e\u003cspan\u003eThis \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eGeneral Electric 5Y3GT NOS\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, manufactured in the United States in the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e17th week of 1958\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, is an authentic American rectifier from the golden age of tube production. The construction with \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003egray plates\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, characteristic \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eD getter\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, GT bulb and octal base reflects the robustness and construction accuracy traditionally associated with General Electric tubes.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe test performed on the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eFunke W19\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e detected values of \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e90 mA and 87 mA\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, both clearly above the 100% average\u003c\/span\u003e\u003cspan\u003e. The result confirms a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003every strong, stable, and even emission\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, particularly significant for a tube produced over sixty years ago and preserved in excellent electrical condition.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe difference of only \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e3 mA\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e between the two sections also highlights an \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eexcellent internal balance\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, an important feature for achieving uniform rectification and reliable power supply operation. Additional checks confirmed the complete absence of \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eshort circuits and gas\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e5Y3GT\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is a full-wave rectifier used in the power supplies of numerous guitar amplifiers, radio devices, hi-fi systems, and vintage tube electronics. It can also be used in equipment designed for the equivalent \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e5Z2P\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e rectifier, after verifying the manufacturer's specifications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe original markings \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eGE Electronic Tube\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, the EIA code \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e188\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e and the production code of \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e1958\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e clearly document its American General Electric origin. A NOS tube that combines \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eproven origin, fine vintage construction with a D getter, emission well above average, and well-balanced sections\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e: a quality choice for careful restorations and compatible tube equipment.\u003c\/span\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cstrong\u003eCondition:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eCondition:\u003c\/strong\u003e NOS - New Old Stock - Tested and working - Supplied in our custom box for optimal protection.\u0026nbsp;\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eFunctionality:\u0026nbsp;\u003c\/strong\u003ePerfectly operational.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAesthetic condition:\u003c\/strong\u003e Very Good – Markings clearly legible with slight signs of age. See photos for details.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eManufacturing Code:\u003c\/strong\u003e 58-137 188 → RMA\/EIA Open Date Code → manufactured in the 17th week of 1958 - 188 → General Electric Company, Syracuse 1, N. Y.\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 longevity\" 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":59637329330524,"sku":"03898","price":6300.0,"currency_code":"ISK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0616\/3775\/5127\/files\/1_f69c4719-3349-4ce5-b9ae-9eed7d3be6c4.jpg?v=1792851069","url":"https:\/\/vacuumtubestreasures.com\/en-is\/products\/5y3gt-5z2p-ge-nos-black-plates-d-getter-tube-rectifier-made-in-usa","provider":"Vacuum Tubes Treasures","version":"1.0","type":"link"}