{"product_id":"6sn7-gtb-rca-silver-logo-amplitrex-tested-pair-same-data-codes-black-plates-d-getter-low-noise-mic-tubes","title":"6SN7 GTB RCA Silver Logo AMPLITREX Tested Pair Same data Codes Black Plates D Getter Low Noise \u0026 Mic Tubes","description":"\u003ch3 class=\"p1\"\u003e\u003cstrong\u003e6SN7 GTB RCA Silver Logo AMPLITREX Tested Pair Same data Codes Black Plates D Getter -  Made In USA - 1960\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp class=\"p1\"\u003e\u003cb\u003eAMPLITREX Tested – STRONG – Low Noise \u0026amp; Microphonics\u003c\/b\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eRisultati dei Test:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eValvole testate su \u003cstrong\u003eAmplitrex AT-1000 Tube tester\u003c\/strong\u003e:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondizioni di Test:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eVa = 250V, Vg = -8V\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMedia 100% Gm = 2600 ; Ia = 9.0 mA\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRisultato del Test:\u003c\/strong\u003e FORTE\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"p1\"\u003e\u003cb\u003eValvola #1\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSezione 1: \u003c\/strong\u003eGm = 2430 ; Ia = 8.8 mA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSezione 2: \u003c\/strong\u003eGm = 2480 ; Ia = 8.2 mA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"p1\"\u003e\u003cb\u003eValvola #2\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSezione 1: \u003c\/strong\u003eGm = 2200 ; Ia = 8.4 mA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSezione 2: \u003c\/strong\u003eGm = 2000 ; Ia = 7.6 mA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 class=\"p1\"\u003e\u003cb\u003eDescrizione\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003ePregiata coppia di \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e6SN7GTB RCA Silver Logo\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, prodotta negli Stati Uniti nel \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e1960\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e e caratterizzata dalla classica costruzione \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eBlack Plates con D Getter\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. Entrambe le valvole presentano lo stesso codice di fabbricazione \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eLS\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, elemento particolarmente interessante per chi ricerca una coppia omogenea per periodo e produzione.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eQuesta configurazione appartiene alla storica produzione RCA americana di inizio anni ’60, apprezzata per robustezza costruttiva, affidabilità e qualità sonora. Le \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eBlack Plates\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e abbinate al \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eD Getter\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e rappresentano una delle costruzioni più riconoscibili e ricercate della famiglia 6SN7 RCA.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eLe valvole sono state accuratamente testate nel nostro laboratorio mediante \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eAmplitrex AT-1000 Tube Tester\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, ottenendo classificazione \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eSTRONG \/ FORTE\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. Entrambe sono risultate \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eLow Noise \u0026amp; Microphonics\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, con emissione regolare e sezioni interne sufficientemente equilibrate per l’impiego in applicazioni audio di qualità.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDal punto di vista sonoro, le RCA Black Plate sono note per una riproduzione piena e naturale, con bassi solidi e controllati, medi ricchi e ben presenti, alte frequenze morbide ma definite e una scena sonora ampia e stabile. Il carattere complessivo è musicale, corposo e raffinato, tipico delle migliori produzioni RCA vintage.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIdeali per preamplificatori hi-fi, driver stage, phase splitter, amplificatori per cuffie e apparecchiature compatibili con \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e6SN7GT \/ 6SN7GTB\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eLe valvole sono \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eusate\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, accuratamente testate e perfettamente funzionanti. Le condizioni estetiche sono \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003ebuone\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, con serigrafie parzialmente erose ma ancora leggibili e normali segni del tempo.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eUna interessante coppia di autentiche \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eRCA 6SN7GTB Black Plates del 1960\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, realmente testata e selezionata da \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eVacuum Tubes Treasures\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3 class=\"p1\"\u003e\u003cb\u003eTest addizionali:\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli class=\"p1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003cb\u003eMicrofonicità e rumore:\u003c\/b\u003e\u003c\/span\u003e Bassa. Testate e conformi per l’impiego in apparecchiature hi-fi e amplificatori per chitarra, anche negli stadi audio più sensibili.\u003c\/li\u003e\n\u003cli class=\"p1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003cb\u003eBilanciamento:\u003c\/b\u003e\u003c\/span\u003e Buono. Le sezioni presentano un equilibrio coerente, pienamente compatibile con l’impiego in ambito hi-fi e negli amplificatori musicali, in tutte le applicazioni in cui non sia richiesta una simmetria assoluta tra le sezioni.\u003c\/li\u003e\n\u003cli class=\"p1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003cb\u003eEmissione:\u003c\/b\u003e\u003c\/span\u003e Forte – Emissione forte e regolare, adatta a qualsiasi applicazione.\u003c\/li\u003e\n\u003cli class=\"p1\"\u003e\n\u003cb\u003eCortocircuiti \/ Gas:\u003c\/b\u003e\u003cspan class=\"s1\"\u003e assenti\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 class=\"p1\"\u003e\u003cstrong\u003eCondizioni\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli class=\"p1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003cb\u003eCondizioni:\u003c\/b\u003e\u003c\/span\u003e Valvole Vintage - Testate e perfettamente funzionanti. Fornite in nostra scatola personalizzata per una protezione ottimale.\u003c\/li\u003e\n\u003cli class=\"p1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003cb\u003eFunzionalità:\u003c\/b\u003e\u003c\/span\u003e Perfettamente operativa\u003c\/li\u003e\n\u003cli class=\"p1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003cb\u003eCondizioni estetiche:\u003c\/b\u003e\u003c\/span\u003e Buone – Scritte parzialmente erose, ma ancora leggibili. Corpo della valvola in buone condizioni. Vedi foto per i dettagli.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCodice di fabbricazione:\u003c\/strong\u003e LS → codice a due lettere → produzione Marzo 1960 → Radio Corporation of America, Camden, N. J.\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":"RCA","offers":[{"title":"Default Title","offer_id":58795354849628,"sku":"03754","price":119.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0616\/3775\/5127\/files\/2_603fdeb9-24ff-49a0-971a-d4a641ae0943.jpg?v=1787656501","url":"https:\/\/vacuumtubestreasures.com\/it-lv\/products\/6sn7-gtb-rca-silver-logo-amplitrex-tested-pair-same-data-codes-black-plates-d-getter-low-noise-mic-tubes","provider":"Vacuum Tubes Treasures","version":"1.0","type":"link"}