{"product_id":"jan-chs-6sl7wgt-nos-nib-sylvania-brown-base-square-getter-amplitrex-tested-pair-made-in-usa-50s","title":"JAN-CHS 6SL7WGT NOS NIB SYLVANIA Brown Base Square Getter AMPLITREX Tested Pair Made in USA '50s","description":"\u003cp class=\"p1\"\u003e\u003cb\u003eJAN-CHS 6SL7WGT NOS NIB SYLVANIA Brown Base Square Getter AMPLITREX Tested Pair Made in USA ’50s\u003c\/b\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 JAN-CHS 6SL7WGT SYLVANIA NOS NIB\u003c\/b\u003e\u003c\/span\u003e, prodotta negli Stati Uniti negli anni ’50, rappresenta una selezione di assoluto livello, capace di unire \u003cspan class=\"s1\"\u003e\u003cb\u003eprestigio militare, qualità costruttiva e forte identità sonora\u003c\/b\u003e\u003c\/span\u003e.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eLa sigla \u003cspan class=\"s1\"\u003e\u003cb\u003eJAN-CHS (Joint Army-Navy – Contract High Specification)\u003c\/b\u003e\u003c\/span\u003e identifica una produzione destinata a impieghi militari, realizzata secondo standard estremamente rigorosi in termini di affidabilità, durata e stabilità operativa.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eQueste valvole presentano una costruzione tipica delle versioni più robuste e ricercate:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"p1\"\u003e\u003cb\u003eWGT (versione rinforzata)\u003c\/b\u003e\u003c\/li\u003e\n\u003cli class=\"p1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003cb\u003eBrown Base\u003c\/b\u003e\u003c\/span\u003e (base marrone, elegante e altamente resistente)\u003c\/li\u003e\n\u003cli class=\"p1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003cb\u003eSquare Getter\u003c\/b\u003e\u003c\/span\u003e (getter quadrato, scenografico e distintivo)\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\"\u003eSi tratta di una \u003cspan class=\"s1\"\u003e\u003cb\u003ecoppia NOS NIB (New Old Stock, con scatole originali)\u003c\/b\u003e\u003c\/span\u003e, selezionata e testata, non una semplice accoppiata casuale ma una proposta di qualità, scelta per coerenza e resa complessiva.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003ePur non essendo una matched pair, le valvole mostrano un comportamento elettrico solido e un \u003cspan class=\"s1\"\u003e\u003cb\u003ebilanciamento interno ben allineato\u003c\/b\u003e\u003c\/span\u003e, che le rende perfettamente utilizzabili in molte applicazioni hi-fi e musicali.\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:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"p1\"\u003e\u003cb\u003eRisultato: MOLTO FORTE\u003c\/b\u003e\u003c\/li\u003e\n\u003cli class=\"p1\"\u003e\u003cb\u003eClassificazione interna VTT: MOLTO FORTE\u003c\/b\u003e\u003c\/li\u003e\n\u003cli class=\"p1\"\u003e\u003cb\u003eLow Noise \u0026amp; Microphonics\u003c\/b\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"786\" data-end=\"999\"\u003e\n\u003cstrong data-start=\"788\" data-end=\"814\"\u003eCaratteristiche Sonore\u003c\/strong\u003e\u003cmeta charset=\"utf-8\"\u003e\n\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBassi\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"p3\"\u003ePieni e ben strutturati, con una base solida che dona stabilità all’intera gamma sonora.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eMedi\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p3\"\u003eRicchi, materici e profondamente musicali. Le voci emergono con naturalezza e presenza, tipiche della grande produzione americana.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eAlti\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p3\"\u003eDolci e raffinati, con una buona estensione e una resa sempre fluida e mai affaticante.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eDinamica\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p3\"\u003eViva e controllata, con una risposta progressiva che valorizza ogni sfumatura del segnale.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eSoundstage\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p3\"\u003eAmpio e tridimensionale, con una scena ariosa 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\"\u003ecircuitazioni dove è richiesta stabilità e musicalità\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"p1\"\u003eGrazie alla costruzione \u003cspan class=\"s2\"\u003e\u003cb\u003eWGT e alla selezione JAN\u003c\/b\u003e\u003c\/span\u003e, offrono un comportamento affidabile anche in posizioni sensibili, con una resa sonora equilibrata e coinvolgente.\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\"\u003ePerfette per:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"p1\"\u003eamplificatori per strumenti vintage\u003c\/li\u003e\n\u003cli class=\"p1\"\u003epreamplificatori valvolari\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\u003eJAN-CHS – produzione militare USA\u003c\/b\u003e\u003c\/li\u003e\n\u003cli class=\"p1\"\u003e\u003cb\u003eSYLVANIA – anni ’50\u003c\/b\u003e\u003c\/li\u003e\n\u003cli class=\"p1\"\u003e\u003cb\u003e6SL7WGT (versione rinforzata)\u003c\/b\u003e\u003c\/li\u003e\n\u003cli class=\"p1\"\u003e\u003cb\u003eBrown Base – Square Getter\u003c\/b\u003e\u003c\/li\u003e\n\u003cli class=\"p1\"\u003e\u003cb\u003eNOS NIB con scatole originali\u003c\/b\u003e\u003c\/li\u003e\n\u003cli class=\"p1\"\u003e\u003cb\u003eCoppia selezionata (non matched)\u003c\/b\u003e\u003c\/li\u003e\n\u003cli class=\"p1\"\u003e\u003cb\u003eLow Noise \u0026amp; Microphonics\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\"\u003eUna coppia che va oltre il semplice utilizzo: una \u003cspan class=\"s1\"\u003e\u003cb\u003evera testimonianza della produzione militare americana\u003c\/b\u003e\u003c\/span\u003e, capace di offrire \u003cspan class=\"s1\"\u003e\u003cb\u003eaffidabilità, musicalità e un’identità sonora distintiva\u003c\/b\u003e\u003c\/span\u003e, ideale per chi ricerca una 6SL7 di livello superiore.\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 = 1800 ; Ia = 2.4 mA\u003c\/li\u003e\n\u003cli class=\"p1\"\u003eSezione 2: Gm = 2000 ; Ia = 2.7 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 = 1.7 mA\u003c\/li\u003e\n\u003cli class=\"p1\"\u003eSezione 2: Gm = 1500 ; Ia = 1.7 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\u003cspan\u003e\u003cstrong\u003eBilanciamento: \u003c\/strong\u003eLe sezioni risultano coerenti e ben allineate, rendendo la valvola idonea anche all’impiego come phase inverter in applicazioni hi-fi e strumentali.\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\u003e NOS - NIB - New Old Stock, New In Box - Testata e funzionante - Fornite in scatola Originale.\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 Una Valvola Eccellenti – Scritte ottimamente conservate, minimi segni del tempo. L'altra Buone – Scritte parzialmente erose, ma ancora leggibili. Corpo della valvola in buone condizioni. Vedi foto per i dettagli.\u003c\/span\u003e\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCodice di Fabbricazione:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e510 → Sylvania Electric Products Inc., Emporium, Pa. - \u003cmeta charset=\"utf-8\"\u003e510 → 0 ( su tre cifre ) → 1955 - 10 → 10a settimana dell'anno\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e??? → Sylvania Electric Products Inc., Emporium, Pa. - \u003cmeta charset=\"utf-8\"\u003e??? → non decifrabile, identificabile per caratteristiche costruttive. Anni ’50\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":57319935476060,"sku":"03517-ONSPEC","price":149.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0616\/3775\/5127\/files\/1_8599fa78-cce0-49b0-982d-4a829c903458.jpg?v=1775812460","url":"https:\/\/vacuumtubestreasures.com\/it-ee\/products\/jan-chs-6sl7wgt-nos-nib-sylvania-brown-base-square-getter-amplitrex-tested-pair-made-in-usa-50s","provider":"Vacuum Tubes Treasures","version":"1.0","type":"link"}