{"product_id":"6sn7-gtb-nos-nib-philco-black-plates-chrome-top-tested-tube-made-in-usa-57","title":"6SN7GTB NOS NIB Philco by Sylvania – Black Plates Chrome Top Tested Tube USA 1957","description":"\u003cp\u003e\u003cstrong\u003e6SN7 GTB NOS NIB PHILCO Black Plates Chrome Top Tested Tube Made in USA '57\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eDescrizione:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-end=\"525\" data-start=\"32\"\u003eLe \u003cstrong data-end=\"79\" data-start=\"35\"\u003e6SN7 GTB PHILCO by Sylvania Black Plates\u003c\/strong\u003e, con \u003cstrong data-end=\"99\" data-start=\"85\"\u003eChrome Top\u003c\/strong\u003e, prodotte negli \u003cstrong data-end=\"140\" data-start=\"116\"\u003eStati Uniti nel 1957\u003c\/strong\u003e, rappresentano una delle scelte migliori per chi cerca una \u003cstrong data-end=\"259\" data-start=\"200\"\u003eriproduzione sonora equilibrata, musicale e dettagliata\u003c\/strong\u003e. \u003cstrong data-end=\"298\" data-start=\"261\"\u003eRealizzate da Sylvania per PHILCO\u003c\/strong\u003e, queste valvole combinano la \u003cstrong data-end=\"381\" data-start=\"328\"\u003etipica trasparenza e articolazione delle Sylvania\u003c\/strong\u003e con una \u003cstrong data-end=\"436\" data-start=\"390\"\u003etimbrica leggermente più calda e armoniosa\u003c\/strong\u003e, rendendole perfette per \u003cstrong data-end=\"522\" data-start=\"462\"\u003epreamplificatori hi-fi e amplificatori valvolari vintage\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cul data-end=\"1600\" data-start=\"527\"\u003e\n\u003cli data-end=\"730\" data-start=\"527\"\u003e\n\u003cstrong data-end=\"538\" data-start=\"529\"\u003eBassi\u003c\/strong\u003e: \u003cstrong data-end=\"570\" data-start=\"540\"\u003eBen definiti e controllati\u003c\/strong\u003e, con una gamma bassa \u003cstrong data-end=\"621\" data-start=\"592\"\u003eprofonda ma mai invadente\u003c\/strong\u003e. L’eccellente articolazione permette una riproduzione \u003cstrong data-end=\"696\" data-start=\"676\"\u003epulita e precisa\u003c\/strong\u003e, senza gonfiature indesiderate.\u003c\/li\u003e\n\u003cli data-end=\"970\" data-start=\"731\"\u003e\n\u003cstrong data-end=\"741\" data-start=\"733\"\u003eMedi\u003c\/strong\u003e: \u003cstrong data-end=\"788\" data-start=\"743\"\u003eNaturali, dettagliati e leggermente caldi\u003c\/strong\u003e, con una separazione strumentale eccezionale. Le voci risultano \u003cstrong data-end=\"881\" data-start=\"853\"\u003eavvolgenti e realistiche\u003c\/strong\u003e, mentre gli strumenti acustici godono di una \u003cstrong data-end=\"967\" data-start=\"927\"\u003echiarezza e presenza tridimensionale\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli data-end=\"1182\" data-start=\"971\"\u003e\n\u003cstrong data-end=\"981\" data-start=\"973\"\u003eAlti\u003c\/strong\u003e: \u003cstrong data-end=\"1005\" data-start=\"983\"\u003eEstesi e raffinati\u003c\/strong\u003e, con una resa \u003cstrong data-end=\"1038\" data-start=\"1020\"\u003edolce e setosa\u003c\/strong\u003e, priva di asprezze o affaticamento. Il dettaglio è straordinario ma sempre musicale, garantendo una resa sonora \u003cstrong data-end=\"1179\" data-start=\"1151\"\u003etrasparente e bilanciata\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli data-end=\"1444\" data-start=\"1183\"\u003e\n\u003cstrong data-end=\"1197\" data-start=\"1185\"\u003eDinamica\u003c\/strong\u003e: \u003cstrong data-end=\"1220\" data-start=\"1199\"\u003eReattiva e fluida\u003c\/strong\u003e, con una gestione dei transienti \u003cstrong data-end=\"1275\" data-start=\"1254\"\u003erapida e naturale\u003c\/strong\u003e, che assicura un suono \u003cstrong data-end=\"1328\" data-start=\"1299\"\u003ecoinvolgente e articolato\u003c\/strong\u003e, capace di restituire \u003cstrong data-end=\"1412\" data-start=\"1351\"\u003esia le sfumature più delicate che i passaggi più energici\u003c\/strong\u003e con precisione e naturalezza.\u003c\/li\u003e\n\u003cli data-end=\"1600\" data-start=\"1445\"\u003e\n\u003cstrong data-end=\"1461\" data-start=\"1447\"\u003eSoundstage\u003c\/strong\u003e: \u003cstrong data-end=\"1481\" data-start=\"1463\"\u003eAmpio e arioso\u003c\/strong\u003e, con un'ottima separazione tra gli strumenti e una resa tridimensionale che conferisce profondità alla scena sonora.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"2013\" data-start=\"1602\"\u003eGrazie alla loro \u003cstrong data-end=\"1673\" data-start=\"1619\"\u003ecostruzione robusta, con Black Plates e Chrome Top\u003c\/strong\u003e, queste \u003cstrong data-end=\"1713\" data-start=\"1682\"\u003e6SN7 GTB PHILCO by Sylvania\u003c\/strong\u003e offrono \u003cstrong data-end=\"1780\" data-start=\"1722\"\u003eeccellente stabilità operativa e microfonicità ridotta\u003c\/strong\u003e, risultando ideali per \u003cstrong data-end=\"1858\" data-start=\"1804\"\u003eaudiofili esigenti e sistemi hi-fi di alto livello\u003c\/strong\u003e. Il loro \u003cstrong data-end=\"1918\" data-start=\"1868\"\u003esuono caldo, dettagliato e armonicamente ricco\u003c\/strong\u003e le rende una scelta eccellente per chi desidera una riproduzione \u003cstrong data-end=\"2010\" data-start=\"1984\"\u003etrasparente e musicale\u003c\/strong\u003e.\u003c\/p\u003e\n\u003chr\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 Va = 250V ; Vg = -8V\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMedia 100%:\u003c\/strong\u003e\u003cspan\u003e \u003cmeta charset=\"utf-8\"\u003eGm = 2600 ; Ia = 9 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\u003cstrong\u003eValvola :\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSezione 1:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eGm = 2600 ; Ia = 8,2 mA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSezione 2:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eGm = 2400 ; Ia = 7,6 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 Standard – Testate e conformi per l'uso in sistemi 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\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 - 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 Eccellenti – Scritte perfettamente conservate, minimi segni di usura. Vedi foto.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCodice di Fabbricazione: \u003c\/strong\u003e312 - 572? - Fabbricate da Sylvania nel 1957\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":"PHILCO","offers":[{"title":"Default Title","offer_id":54055211237724,"sku":"02784","price":42.44,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0616\/3775\/5127\/files\/4_588cb6ac-dc6d-406f-bef5-67eaff81f226.jpg?v=1740588685","url":"https:\/\/vacuumtubestreasures.com\/it-hr\/products\/6sn7-gtb-nos-nib-philco-black-plates-chrome-top-tested-tube-made-in-usa-57","provider":"Vacuum Tubes Treasures","version":"1.0","type":"link"}