{"product_id":"6sl7gt-vt-229-sylvania-nos-black-round-plates-foil-getter-amplitrex-matched-pair-made-in-usa-50s","title":"6SL7GT (VT-229) SYLVANIA NOS Black Round Plates Foil Getter AMPLITREX Matched Pair Made in USA '50s.","description":"\u003cp\u003e\u003cstrong\u003e6SL7GT (VT-229) SYLVANIA NOS Black Round Plates Foil Getter AMPLITREX Matched Pair Made in USA '50s\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3 data-start=\"0\" data-end=\"784\"\u003e\u003cstrong data-start=\"3\" data-end=\"27\"\u003eDescrizione Generale\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp class=\"p1\"\u003eQuesta \u003cspan class=\"s1\"\u003e\u003cb\u003ecoppia di 6SL7GT (VT-229) SYLVANIA NOS\u003c\/b\u003e\u003c\/span\u003e, prodotta negli Stati Uniti negli anni ’50, rappresenta una proposta di grande fascino storico e sonoro, perfettamente in linea con le migliori espressioni della produzione americana dell’epoca.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eLe valvole si distinguono per una costruzione particolarmente ricercata:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"p1\"\u003e\u003cb\u003eBlack Round Plates\u003c\/b\u003e\u003c\/li\u003e\n\u003cli class=\"p1\"\u003e\u003cb\u003eFoil Getter\u003c\/b\u003e\u003c\/li\u003e\n\u003cli class=\"p1\"\u003e\n\u003cspan class=\"s1\"\u003eproduzione \u003c\/span\u003e\u003cb\u003eSYLVANIA USA – anni ’50\u003c\/b\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"p1\"\u003eUna configurazione iconica che unisce valore collezionistico e resa musicale, sempre più difficile da reperire in condizioni NOS.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eSi tratta di una \u003cspan class=\"s1\"\u003e\u003cb\u003ecoppia selezionata e proposta come matched pair\u003c\/b\u003e\u003c\/span\u003e, frutto di una scelta attenta e orientata alla coerenza complessiva e alla resa sonora.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eTestate con \u003cspan class=\"s1\"\u003e\u003cb\u003eAmplitrex AT-1000\u003c\/b\u003e\u003c\/span\u003e, hanno ottenuto una \u003cb\u003eClassificazione interna VTT: MOLTO FORTE\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eLe valvole offrono un comportamento elettrico stabile e un equilibrio coerente tra le sezioni, rendendole perfettamente utilizzabili in ambito hi-fi e musicale.\u003c\/p\u003e\n\u003ch3 data-start=\"786\" data-end=\"999\"\u003e\n\u003cstrong data-start=\"788\" data-end=\"814\"\u003eCaratteristiche Sonore\u003c\/strong\u003e\u003cbr data-start=\"814\" data-end=\"817\"\u003e\u003cmeta charset=\"utf-8\"\u003e\n\u003c\/h3\u003e\n\u003cp\u003e\u003cb\u003eBassi\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p3\"\u003ePieni e ben articolati, con una presenza naturale che dona solidità alla scena sonora.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eMedi\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p3\"\u003eRicchi, materici e coinvolgenti. Le voci emergono con grande naturalezza, restituendo una timbrica autenticamente vintage.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eAlti\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p3\"\u003eDolci e ben estesi, con una resa fluida e mai aggressiva.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eDinamica\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p3\"\u003eNaturale e progressiva, con una risposta musicale che valorizza ogni sfumatura.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eSoundstage\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p3\"\u003eAmpio e tridimensionale, con una buona profondità e una separazione credibile degli strumenti.\u003c\/p\u003e\n\u003ch3 data-end=\"1875\" data-start=\"1819\"\u003e🎧 \u003cstrong data-end=\"1859\" data-start=\"1822\"\u003eUso in Amplificatori Hi-Fi Stereo\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003cp class=\"p1\"\u003eIdeali per:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"p1\"\u003epreamplificatori valvolari\u003c\/li\u003e\n\u003cli class=\"p1\"\u003estadi di ingresso\u003c\/li\u003e\n\u003cli class=\"p1\"\u003esistemi orientati alla musicalità e al realismo timbrico\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"p1\"\u003eQuesta coppia offre una resa \u003cspan class=\"s2\"\u003e\u003cb\u003ecalda, equilibrata e coinvolgente\u003c\/b\u003e\u003c\/span\u003e, perfetta per valorizzare ascolti di qualità.\u003c\/p\u003e\n\u003ch3 data-end=\"2229\" data-start=\"2177\"\u003e🎸 \u003cstrong data-end=\"2213\" data-start=\"2180\"\u003eUso in Amplificatori Musicali\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003cp class=\"p1\"\u003eOttima scelta per:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"p1\"\u003eamplificatori per strumenti\u003c\/li\u003e\n\u003cli class=\"p1\"\u003epreamplificatori vintage\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"p1\"\u003eOffrono:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"p1\"\u003egrande espressività nei medi\u003c\/li\u003e\n\u003cli class=\"p1\"\u003erisposta dinamica naturale\u003c\/li\u003e\n\u003cli class=\"p1\"\u003ecarattere sonoro autentico anni ’50\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"2611\" data-start=\"2509\"\u003e🎯 \u003cstrong data-end=\"2544\" data-start=\"2512\"\u003eNota per audiofili e tecnici\u003c\/strong\u003e\u003cbr data-end=\"2547\" data-start=\"2544\"\u003e\n\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli class=\"p1\"\u003e\u003cb\u003eSYLVANIA USA – anni ’50\u003c\/b\u003e\u003c\/li\u003e\n\u003cli class=\"p1\"\u003e\u003cb\u003eBlack Round Plates – Foil Getter\u003c\/b\u003e\u003c\/li\u003e\n\u003cli class=\"p1\"\u003e\u003cb\u003eCoppia selezionata proposta come matched pair\u003c\/b\u003e\u003c\/li\u003e\n\u003cli class=\"p1\"\u003e\u003cb\u003eClassificazione VTT: MOLTO FORTE\u003c\/b\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eUna coppia che unisce \u003c\/span\u003e\u003cb\u003eprestigio, costruzione d’epoca e una resa sonora ricca e musicale\u003c\/b\u003e\u003cspan class=\"s1\"\u003e, ideale per chi desidera una \u003c\/span\u003e\u003cb\u003e6SL7 americana autentica, selezionata e con forte identità sonora\u003c\/b\u003e\u003cspan class=\"s1\"\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3 data-end=\"3436\" data-start=\"3046\"\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 \u003cmeta charset=\"utf-8\"\u003eVa = 250V, Vg = -2V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMedia 100%: \u003c\/strong\u003eGm = 1600 ; Ia = 2.3 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 1:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"p1\"\u003eSezione 1: Gm = 1500 ; Ia = 2.5 mA\u003c\/li\u003e\n\u003cli class=\"p1\"\u003eSezione 2: Gm = 1500 ; Ia = 2.5 mA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eValvola 2:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"p1\"\u003eSezione 1: Gm = 1400 ; Ia = 2.2 mA\u003c\/li\u003e\n\u003cli class=\"p1\"\u003eSezione 2: Gm = 1600 ; Ia = 2.6 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 Bassa. Testate e conformi per l'uso in hi-fi anche in stadi phono e in amplificatori per chitarra. Adatte anche in V1.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e\u003cstrong\u003eBilanciamento: \u003c\/strong\u003e\u003c\/span\u003eLe 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\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\u003e NOS - New Old Stock - Testata e funzionante - Fornite in nostra scatola personalizzata per una protezione ottimale. \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\u003cspan\u003e Eccellenti – Scritte ottimamente conservate, minimi segni del tempo. Vedi foto per i dettagli.\u003c\/span\u003e\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCodice di Fabbricazione: \u003c\/strong\u003eassente, identificabile per caratteristiche costruttive. Anni ’50s → Sylvania Electric Products Inc., Emporium, Pa.\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":"SYLVANIA","offers":[{"title":"Default Title","offer_id":57331127451996,"sku":"03522L_ON-SPEC","price":119.9,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0616\/3775\/5127\/files\/1_47f63f6a-2885-4ed9-9ca1-2f85feaccbc7.jpg?v=1775921361","url":"https:\/\/vacuumtubestreasures.com\/it-lu\/products\/6sl7gt-vt-229-sylvania-nos-black-round-plates-foil-getter-amplitrex-matched-pair-made-in-usa-50s","provider":"Vacuum Tubes Treasures","version":"1.0","type":"link"}