{"product_id":"5y3-gt-5z2p-nu-national-union-black-plates-square-getter-tube-rectifier-made-in-usa-50s","title":"5Y3GT 5Z2P NU National Union – Black Plates Square Getter Rectifier Tube USA 1950s","description":"\u003cp\u003e\u003cstrong\u003e5Y3 GT ( 5Z2P ) NU National Union NOS Black Plates Square Getter Tube Rectifier Made in USA '50s\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eDescrizione:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-end=\"381\" data-start=\"32\"\u003eLa rettificatrice \u003cstrong data-end=\"97\" data-start=\"50\"\u003e5Y3GT (5Z2P) NU National Union Black Plates\u003c\/strong\u003e con \u003cstrong data-end=\"119\" data-start=\"102\"\u003eSquare Getter\u003c\/strong\u003e, prodotta negli \u003cstrong data-end=\"166\" data-start=\"136\"\u003eStati Uniti negli anni ‘50\u003c\/strong\u003e, è una valvola apprezzata per la sua capacità di fornire una \u003cstrong data-end=\"264\" data-start=\"228\"\u003erettificazione fluida e naturale\u003c\/strong\u003e, influenzando la risposta dell’amplificatore con una tensione ben regolata e un’erogazione stabile della corrente.\u003c\/p\u003e\n\u003cul data-end=\"955\" data-start=\"383\"\u003e\n\u003cli data-end=\"515\" data-start=\"383\"\u003e\n\u003cstrong data-end=\"394\" data-start=\"385\"\u003eBassi\u003c\/strong\u003e: Morbidi e controllati, con una buona articolazione che garantisce una riproduzione pulita senza gonfiature eccessive.\u003c\/li\u003e\n\u003cli data-end=\"669\" data-start=\"516\"\u003e\n\u003cstrong data-end=\"526\" data-start=\"518\"\u003eMedi\u003c\/strong\u003e: Naturali e leggermente caldi, con una presentazione fluida e una \u003cstrong data-end=\"625\" data-start=\"593\"\u003ecoerenza timbrica eccellente\u003c\/strong\u003e, rendendo il suono avvolgente e musicale.\u003c\/li\u003e\n\u003cli data-end=\"800\" data-start=\"670\"\u003e\n\u003cstrong data-end=\"680\" data-start=\"672\"\u003eAlti\u003c\/strong\u003e: Armoniosi e mai aggressivi, con un’estensione piacevole che preserva il dettaglio senza introdurre fatica d’ascolto.\u003c\/li\u003e\n\u003cli data-end=\"955\" data-start=\"801\"\u003e\n\u003cstrong data-end=\"815\" data-start=\"803\"\u003eDinamica\u003c\/strong\u003e: \u003cstrong data-end=\"842\" data-start=\"817\"\u003eMorbida e progressiva\u003c\/strong\u003e, con un’ottima gestione dei transienti che conferisce \u003cstrong data-end=\"931\" data-start=\"897\"\u003eun tocco di musicalità vintage\u003c\/strong\u003e al suono complessivo.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"1298\" data-start=\"957\"\u003eLe \u003cstrong data-end=\"994\" data-start=\"960\"\u003eNU National Union Black Plates\u003c\/strong\u003e degli anni ‘50 sono ricercate per la loro \u003cstrong data-end=\"1096\" data-start=\"1037\"\u003ecostruzione robusta e la rettificazione dolce e lineare\u003c\/strong\u003e, risultando ideali sia per \u003cstrong data-end=\"1190\" data-start=\"1124\"\u003eamplificatori hi-fi che per amplificatori per chitarra vintage\u003c\/strong\u003e, dove una tensione \u003cstrong data-end=\"1250\" data-start=\"1210\"\u003eben regolata e leggermente compressa\u003c\/strong\u003e contribuisce a un suono \u003cstrong data-end=\"1295\" data-start=\"1275\"\u003ecaldo e musicale\u003c\/strong\u003e.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cstrong\u003eRisultati dei Test:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eValvola testata su \u003cstrong\u003eFunke W19 \u003c\/strong\u003eTube Tester:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondizioni di Test:\u003c\/strong\u003e\u003cspan\u003e Va = 100V ; Vf = 5V\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMedia 100%:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e Ia = 77,5 mA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRisultato del Test:\u003c\/strong\u003e MOLTO FORTE\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eValvola:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSezione 1:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIa = 75 mA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSezione 2:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIa = 82 mA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003cstrong\u003eTest Addizionali eseguiti:\u003c\/strong\u003e\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eMicrofonicità:\u003c\/strong\u003e \u003cmeta charset=\"utf-8\"\u003eStandard. Testate e conformi per l'uso in hi-fi e amplificatori per chitarra.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eQualità dell’Emissione:\u003c\/strong\u003e Eccellente – Emissione molto forte e stabile, senza fluttuazioni.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eCortocircuiti e GAS:\u003c\/strong\u003e Assenti.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cstrong\u003eCondizioni:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondizioni: \u003c\/strong\u003eVintage - Testata e funzionante - In nostra scatola personalizzata.  \u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunzionalità: \u003c\/strong\u003ePerfettamente operativa.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondizioni estetiche:\u003c\/strong\u003e \u003cmeta charset=\"utf-8\"\u003eMolto Buone – Scritte ben leggibili con lievi segni di erosione. Piccolissima crepa superficiale sulla base, quasi impercettibile e priva di alcun impatto sul funzionamento. Vedi foto.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCodice di Fabbricazione: \u003c\/strong\u003eJC\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003ca rel=\"noopener\" title=\"Perché le nostre valvole sono diverse – il protocollo VTT che migliora suono, affidabilità e durata\" href=\"https:\/\/vacuumtubestreasures.com\/blogs\/notizie\/perche-le-nostre-valvole-sono-diverse\" target=\"_blank\"\u003e\u003cstrong\u003eScopra perché le nostre valvole sono diverse →\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"National Union","offers":[{"title":"Default Title","offer_id":54019705405788,"sku":"02771Y","price":2500.0,"currency_code":"ALL","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0616\/3775\/5127\/files\/1_b01286b8-e554-4d38-a3b0-eb44db13f6d1.jpg?v=1740138647","url":"https:\/\/vacuumtubestreasures.com\/it-al\/products\/5y3-gt-5z2p-nu-national-union-black-plates-square-getter-tube-rectifier-made-in-usa-50s","provider":"Vacuum Tubes Treasures","version":"1.0","type":"link"}