{"product_id":"6v6gt-nos-gm-by-sylvania-black-plate-foil-getter-amplitrex-tested-tube-usa-1956","title":"6V6GT NOS GM by Sylvania Black Plate Foil Getter AMPLITREX Tested Tube USA 1956","description":"\u003ch3\u003e\u003cstrong\u003e6V6GT NOS GM by Sylvania Black Plate Foil Getter Tube Made in USA 1956\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003eAMPLITREX Tested –\u003cspan\u003e VERY STRONG - Vintage American Sylvania Production\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eRisultati dei Test:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eValvola testata su \u003cstrong\u003eAMPLITREX AT-1000 \u003c\/strong\u003eTube Tester:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondizioni di Test:\u003c\/strong\u003e\u003cspan\u003e \u003cmeta charset=\"utf-8\"\u003eVa = 250V; Vg2 = 250V; Vg = -12.5V \u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMedia 100%:\u003c\/strong\u003e\u003cspan\u003e \u003cmeta charset=\"utf-8\"\u003eGm = 4.1 ; Ia = 45 mA\u003c\/span\u003e\n\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\u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003eValvola :\u003c\/strong\u003e \u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eGm = 4.41 ; Ia = 46.4 mA\u003c\/span\u003e\u003c\/p\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 Standard. Testate e conformi per l’impiego in apparecchi 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\u003ch3\u003e\u003cstrong\u003eDescrizione:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eAutentica \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e6V6GT NOS – New Old Stock\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, commercializzata come ricambio originale \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eGM Genuine Parts\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e e costruita negli Stati Uniti da \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eSylvania Electric Products Inc.\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Una produzione private-label di grande fascino storico, destinata alla rete ricambi General Motors ma realizzata secondo gli standard della prestigiosa fabbrica Sylvania di Emporium, Pennsylvania.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIl codice \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e312 652\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e identifica inequivocabilmente Sylvania e colloca la fabbricazione nella \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e52ª settimana del 1956\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. La valvola presenta la ricercata costruzione americana con \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eplacca nera e foil getter\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, accompagnata dalla caratteristica base marchiata GM Genuine Parts e da marcature originali ottimamente conservate.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eTestata su \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eAmplitrex AT-1000\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, ha registrato \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eGm 4,41 mA\/V e Ia 46,4 mA\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, superando i valori nominali di riferimento sia nella transconduttanza sia nella corrente anodica. Il risultato corrisponde a circa il \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e108% per Gm e il 103% per Ia\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, confermando un’emissione \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003emolto forte, stabile e pienamente efficiente\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDurante le verifiche non sono state rilevate fluttuazioni, dispersioni, gas o cortocircuiti. La microfonicità rientra nei valori standard previsti per una valvola finale ed è risultata conforme all’impiego in amplificatori hi-fi vintage, amplificatori per chitarra e altre apparecchiature progettate per la 6V6GT.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSul piano sonoro, le 6V6GT Sylvania americane degli anni Cinquanta sono generalmente apprezzate per una presentazione \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eaperta, dinamica e naturale\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, con medi ben articolati, basse frequenze controllate e una gamma alta definita. Una resa capace di coniugare energia, chiarezza e musicalità, particolarmente interessante negli amplificatori single-ended o come elemento per completare una coppia selezionata.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eProposta come \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eNOS – New Old Stock\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, testata e perfettamente funzionante, si presenta in condizioni estetiche eccellenti, con scritte nitide e soltanto minimi segni del tempo. Viene fornita nella scatola personalizzata Vacuum Tubes Treasures.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eUna 6V6GT del 1956 particolarmente affascinante, valorizzata da \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003emarchiatura GM Genuine Parts, autentica costruzione Sylvania black plate e valori Amplitrex superiori al nominale\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cstrong\u003eCondizioni:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStato:\u003c\/strong\u003e NOS - New Old Stock - Testata e funzionante - Fornite in nostra scatola personalizzata per una protezione ottimale. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunzionalità:\u003c\/strong\u003e Perfettamente operative.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondizioni estetiche:\u003c\/strong\u003e Eccellenti – Scritte ottimamente conservate, minimi segni del tempo. Vedi foto per i dettagli.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCodice di fabbricazione:\u003c\/strong\u003e 312 652 → 312 Sylvania Electric Products Inc., Emporium, Pa. - 652 → 6 ( su tre cifre ) → 1956 - 52 → 52a settimana dell'anno\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003ca href=\"https:\/\/vacuumtubestreasures.com\/blogs\/notizie\/perche-le-nostre-valvole-sono-diverse\" title=\"Perché le nostre valvole sono diverse – il protocollo VTT che migliora suono, affidabilità e durata\" rel=\"noopener\" target=\"_blank\"\u003e\u003cstrong\u003eScopra perché le nostre valvole sono diverse →\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"RAYTHEON","offers":[{"title":"Default Title","offer_id":59268309156188,"sku":"03839T","price":69.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0616\/3775\/5127\/files\/1_a123146f-4931-4c7c-b3a6-b67e1b4a1dcb.jpg?v=1790262278","url":"https:\/\/vacuumtubestreasures.com\/it-fr\/products\/6v6gt-nos-gm-by-sylvania-black-plate-foil-getter-amplitrex-tested-tube-usa-1956","provider":"Vacuum Tubes Treasures","version":"1.0","type":"link"}