{"product_id":"6v6gt-delco-by-sylvania-black-plate-smoked-glass-foil-getter-amplitrex-tested-tube-usa-1952","title":"6V6GT DELCO by Sylvania Black Plate Smoked Glass Foil Getter AMPLITREX Tested Tube USA 1952","description":"\u003ch3\u003e\u003cstrong\u003e6V6GT DELCO by Sylvania Black Plate Smoked Glass Foil Getter Tube Made in USA 1952\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 = 3.97 ; Ia = 40.4 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 Bassa. Testate e conformi per l’impiego in apparecchiature hi-fi e amplificatori per chitarra, anche negli stadi audio più sensibili.\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 Delco Made in USA\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, commercializzata con lo storico marchio Delco e costruita da \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eSylvania Electric Products Inc.\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e nello stabilimento di Emporium, Pennsylvania. Un’interessante produzione private-label americana dei primi anni Cinquanta, capace di unire il fascino della marcatura Delco alla qualità costruttiva delle celebri 6V6GT Sylvania.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIl codice \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e312 213\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e identifica inequivocabilmente Sylvania e colloca la fabbricazione nella \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e13ª settimana del 1952\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. La valvola presenta una delle configurazioni più apprezzate del periodo: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eplacca nera, vetro fumé e foil getter\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, accompagnata dalla grande marcatura gialla Delco sulla base e dalla sigla 6V6GT ancora chiaramente visibile sul vetro.\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 3,97 mA\/V e Ia 40,4 mA\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. La transconduttanza raggiunge circa il \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e97% del valore nominale\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, mentre la corrente anodica si attesta intorno al \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e90% del riferimento\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e: risultati che confermano un’emissione \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eforte, regolare e stabile\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, particolarmente valida per una produzione risalente al 1952.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eLa valvola ha superato tutti i controlli senza evidenziare fluttuazioni, gas o cortocircuiti. La \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003ebassa microfonicità\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e ne consente l’impiego in amplificatori hi-fi, amplificatori per chitarra e altre apparecchiature vintage compatibili con la 6V6GT.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSul piano sonoro, le Sylvania black plate di questa epoca 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 musicale ed energica, adatta sia a configurazioni single-ended sia come elemento per completare una coppia selezionata.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSi tratta di una \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003evalvola vintage usata, testata e perfettamente funzionante\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. Le marcature sono ottimamente conservate e le condizioni estetiche risultano eccellenti, con solamente minimi segni dovuti al tempo. Viene fornita nella scatola personalizzata Vacuum Tubes Treasures.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eUna 6V6GT del 1952 di particolare interesse storico e collezionistico, valorizzata da \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003emarchiatura Delco, autentica costruzione Sylvania black plate e prestazioni Amplitrex ancora molto solide\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 Valvole Vintage - Testate e perfettamente funzionanti. 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 312 213 → 312 Sylvania Electric Products Inc., Emporium, Pa. - 213 → 2 ( su tre cifre ) → 1952 - 13 → 13a 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":59268806672732,"sku":"03840T","price":538.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0616\/3775\/5127\/files\/1_5c21bcb2-808f-4446-9fa8-9207636a64ab.jpg?v=1790266701","url":"https:\/\/vacuumtubestreasures.com\/it-hk\/products\/6v6gt-delco-by-sylvania-black-plate-smoked-glass-foil-getter-amplitrex-tested-tube-usa-1952","provider":"Vacuum Tubes Treasures","version":"1.0","type":"link"}