{"product_id":"5y3gt-5z2p-rca-nos-black-plates-square-getter-tube-rectifier-made-in-usa-58","title":"5Y3GT 5Z2P RCA NOS Black Plates Square Getter Tube Rectifier Made in USA '58","description":"\u003cp\u003e\u003cstrong\u003e5Y3GT ( 5Z2P ) RCA NOS Black Plates Square Getter Tube Rectifier Made in USA '58\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eDescription:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"194\" data-end=\"652\"\u003eThe \u003cstrong data-start=\"197\" data-end=\"210\"\u003eRCA 5Y3GT\u003c\/strong\u003e , in this 1958 version with \u003cstrong data-start=\"244\" data-end=\"260\"\u003eblack plates\u003c\/strong\u003e and \u003cstrong data-start=\"263\" data-end=\"282\"\u003esquare getter\u003c\/strong\u003e , represents one of the most reliable and musically transparent interpretations of the classic American direct-heated rectifier. The \u003cstrong data-start=\"440\" data-end=\"462\"\u003eGT (glass tubular)\u003c\/strong\u003e format offers a compact yet robust structure, ideal for \u003cstrong data-start=\"534\" data-end=\"553\"\u003elow-power\u003c\/strong\u003e audio applications, such as \u003cstrong data-start=\"560\" data-end=\"590\"\u003esingle-ended amplifiers\u003c\/strong\u003e , \u003cstrong data-start=\"592\" data-end=\"622\"\u003etube preamplifiers\u003c\/strong\u003e or \u003cstrong data-start=\"625\" data-end=\"651\"\u003erestored hi-fi radios\u003c\/strong\u003e .\u003c\/p\u003e\n\u003cp data-start=\"654\" data-end=\"940\"\u003eRCA, with its unmistakable tonal signature, provides in this tube a perfect balance between \u003cstrong data-start=\"755\" data-end=\"818\"\u003eoperating silence, dynamic coherence and musical warmth\u003c\/strong\u003e , making it particularly suitable for contexts in which the naturalness of the signal takes priority over pure power.\u003c\/p\u003e\n\u003cp data-start=\"947\" data-end=\"1163\"\u003e\u003cstrong data-start=\"947\" data-end=\"956\"\u003eBass\u003c\/strong\u003e : soft and harmonious. The low range is \u003cstrong data-start=\"996\" data-end=\"1021\"\u003erounded and controlled\u003c\/strong\u003e , without exuberance or rigidity. Not particularly deep, but \u003cstrong data-start=\"1086\" data-end=\"1114\"\u003emusical and well integrated\u003c\/strong\u003e , it contributes to a warm and stable sound base.\u003c\/p\u003e\n\u003cp data-start=\"1165\" data-end=\"1391\"\u003e\u003cstrong data-start=\"1165\" data-end=\"1173\"\u003eMids\u003c\/strong\u003e : Natural and intimate. The mid frequencies are \u003cstrong data-start=\"1218\" data-end=\"1242\"\u003ebalanced and clean\u003c\/strong\u003e , with a \u003cstrong data-start=\"1257\" data-end=\"1287\"\u003ecoherent and unemphasized\u003c\/strong\u003e rendering. Voices and acoustic instruments are \u003cstrong data-start=\"1332\" data-end=\"1356\"\u003ecredible and centered\u003c\/strong\u003e , with a realism without excess.\u003c\/p\u003e\n\u003cp data-start=\"1393\" data-end=\"1608\"\u003e\u003cstrong data-start=\"1393\" data-end=\"1401\"\u003eHighs\u003c\/strong\u003e : Silky and never fatiguing. The high range is \u003cstrong data-start=\"1445\" data-end=\"1477\"\u003esweet, slightly attenuated\u003c\/strong\u003e , with a \u003cstrong data-start=\"1487\" data-end=\"1515\"\u003econtrolled brightness\u003c\/strong\u003e that favors relaxed listening. The detail is there, but it is never pushed to the foreground.\u003c\/p\u003e\n\u003cp data-start=\"1610\" data-end=\"1834\"\u003e\u003cstrong data-start=\"1610\" data-end=\"1622\"\u003eDynamics\u003c\/strong\u003e : progressive and musical. The response to transients is \u003cstrong data-start=\"1676\" data-end=\"1697\"\u003esmooth but coherent\u003c\/strong\u003e , without obvious stuttering or compression. Ideal for systems where \u003cstrong data-start=\"1771\" data-end=\"1794\"\u003eexpressive fluidity\u003c\/strong\u003e is more valuable than extreme reactivity.\u003c\/p\u003e\n\u003cp data-start=\"1836\" data-end=\"2078\"\u003e\u003cstrong data-start=\"1836\" data-end=\"1850\"\u003eSoundstage\u003c\/strong\u003e : compact but credible. The stereo image is \u003cstrong data-start=\"1895\" data-end=\"1957\"\u003ecohesive, with sufficient depth and stable positioning\u003c\/strong\u003e , without artifice. The scene develops \u003cstrong data-start=\"2004\" data-end=\"2032\"\u003enaturally and proportionately\u003c\/strong\u003e , perfect for controlled home environments.\u003c\/p\u003e\n\u003cp data-start=\"2085\" data-end=\"2494\"\u003e🎧 \u003cstrong data-start=\"2088\" data-end=\"2149\"\u003eUse in Hi-Fi Amplifiers and Low Power Driver Stages\u003c\/strong\u003e \u003cbr data-start=\"2149\" data-end=\"2152\"\u003ePerfect for \u003cstrong data-start=\"2165\" data-end=\"2182\"\u003etube DACs\u003c\/strong\u003e , \u003cstrong data-start=\"2184\" data-end=\"2212\"\u003evintage preamps\u003c\/strong\u003e , \u003cstrong data-start=\"2214\" data-end=\"2256\"\u003e2–8 watt single-ended amplifiers\u003c\/strong\u003e , this RCA 5Y3GT offers \u003cstrong data-start=\"2281\" data-end=\"2314\"\u003estable voltage, smooth start-up\u003c\/strong\u003e and a \u003cstrong data-start=\"2334\" data-end=\"2358\"\u003eclassic, relaxed\u003c\/strong\u003e sound signature. A great choice for systems that focus on \u003cstrong data-start=\"2402\" data-end=\"2453\"\u003erefinement, silence and extended listening\u003c\/strong\u003e , even with high-efficiency speakers.\u003c\/p\u003e\n\u003cp data-start=\"2496\" data-end=\"2895\"\u003e🎸 \u003cstrong data-start=\"2499\" data-end=\"2548\"\u003eUse in Low-Wattage Guitar Amps\u003c\/strong\u003e \u003cbr data-start=\"2548\" data-end=\"2551\"\u003eWidely used in \u003cstrong data-start=\"2569\" data-end=\"2608\"\u003elow-powered Fender Tweed amps\u003c\/strong\u003e (such as the Champ, Princeton, pre-CBS Deluxe), this rectifier contributes a \u003cstrong data-start=\"2696\" data-end=\"2727\"\u003ewarm, compressed, organic\u003c\/strong\u003e sound, with natural sag and a musical edge that’s ideal for \u003cstrong data-start=\"2780\" data-end=\"2810\"\u003eblues, jazz, and vintage rock\u003c\/strong\u003e . The sound “collapses” nicely under stress, lending character and musicality.\u003c\/p\u003e\n\u003cp data-start=\"2897\" data-end=\"3303\"\u003e🎯 \u003cstrong data-start=\"2900\" data-end=\"2932\"\u003eNote for audiophiles and technicians\u003c\/strong\u003e \u003cbr data-start=\"2932\" data-end=\"2935\"\u003eA \u003cstrong data-start=\"2953\" data-end=\"2999\"\u003eclassic, transparent and unobtrusive voice\u003c\/strong\u003e tube that combines the \u003cstrong data-start=\"3015\" data-end=\"3043\"\u003ehistoric RCA reliability\u003c\/strong\u003e with a \u003cstrong data-start=\"3062\" data-end=\"3094\"\u003ecoherent and artifice-free\u003c\/strong\u003e sound output. In the \u003cstrong data-start=\"3108\" data-end=\"3124\"\u003eNOS version from 1958\u003c\/strong\u003e , with \u003cstrong data-start=\"3130\" data-end=\"3164\"\u003esquare getter and black plates\u003c\/strong\u003e , it is an excellent choice for those looking for a \u003cstrong data-start=\"3208\" data-end=\"3268\"\u003esilent, long-lasting and musically neutral rectifier\u003c\/strong\u003e for low-power audio systems.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cstrong\u003eTest Results:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eValve tested on \u003cstrong\u003eFunke W19\u003c\/strong\u003e Tube Tester:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eTest Conditions:\u003c\/strong\u003e \u003cspan\u003eVa = 100V ; Vf = 5V\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAverage 100%:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIa = 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\u003eValve :\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eSection 1:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIa = 82 mA\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSection 2:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIa = 80 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\u003eMicrophonics:\u003c\/strong\u003e\u003cmeta charset=\"utf-8\"\u003e Standard. Tested and compliant for use in hi-fi and guitar amplifiers.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eOutput Quality:\u003c\/strong\u003e Excellent – Very strong and stable output, no 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\u003chr\u003e\n\u003ch3\u003e\u003cstrong\u003eConditions:\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.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eFunctionality:\u003c\/strong\u003e Fully functional.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAesthetic condition:\u003c\/strong\u003e Excellent – Perfectly preserved writing, minimal signs of wear. See photos.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eManufacturing Code:\u003c\/strong\u003e KV - RCA Production April 1958\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":54831242084700,"sku":"02980","price":44.9,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0616\/3775\/5127\/files\/1_1df91a1c-c6c3-4ee6-bae4-38a26dfd52df.jpg?v=1750858452","url":"https:\/\/vacuumtubestreasures.com\/en-hr\/products\/5y3gt-5z2p-rca-nos-black-plates-square-getter-tube-rectifier-made-in-usa-58","provider":"Vacuum Tubes Treasures","version":"1.0","type":"link"}