{"product_id":"12ax7-ecc83-nos-baldwin-by-sylvania-long-gray-plates-large-halo-getter-matched-tubes-made-in-usa-49-copia-1","title":"12AX7 ECC83 Baldwin by SYLVANIA – Matched Pair – Long Gray Plates Halo Getter USA 1959","description":"\u003cp\u003e\u003cstrong\u003e12AX7 ( ECC83 ) Baldwin by SYLVANIA Matched Pair Long Gray Plates Halo Getter Tubes Made in USA '59\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eDescrizione:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp class=\"\" data-end=\"703\" data-start=\"214\"\u003eLa\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-end=\"246\" data-start=\"217\"\u003e12AX7 Baldwin by Sylvania\u003c\/strong\u003e, prodotta negli\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-end=\"287\" data-start=\"263\"\u003eStati Uniti nel 1959\u003c\/strong\u003e, è una valvola selezionata per organi Baldwin e costruita da Sylvania con \u003cstrong data-end=\"387\" data-start=\"362\"\u003epiastre lunghe grigie\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ee\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-end=\"429\" data-start=\"390\"\u003egetter ad anello\u003c\/strong\u003e, secondo standard di selezione rigorosi. Questa\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-end=\"499\" data-start=\"478\"\u003ecoppia matched\u003c\/strong\u003e\u003cstrong data-start=\"831\" data-end=\"871\"\u003e,\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003erappresenta una rara combinazione di\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-end=\"604\" data-start=\"537\"\u003emusicalità naturale, silenziosità operativa e coerenza timbrica\u003c\/strong\u003e, ideale per applicazioni stereo phono simmetriche o configurazioni a canali multipli ad alta precisione.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-end=\"900\" data-start=\"705\"\u003e\n\u003cstrong data-end=\"714\" data-start=\"705\"\u003eBassi\u003c\/strong\u003e: Morbidi e ben controllati, con una presenza equilibrata e priva di gonfiamenti. Offrono una base solida e coerente per la scena sonora, con ottima articolazione nei registri inferiori.\u003c\/li\u003e\n\u003cli data-end=\"1101\" data-start=\"902\"\u003e\n\u003cstrong data-end=\"910\" data-start=\"902\"\u003eMedi\u003c\/strong\u003e: Caldi, leggermente eufonici e ricchi di armoniche. Le voci e gli strumenti acustici emergono con naturalezza e profondità, mantenendo sempre una timbrica coerente tra le valvole del gruppo.\u003c\/li\u003e\n\u003cli data-end=\"1267\" data-start=\"1103\"\u003e\n\u003cstrong data-end=\"1111\" data-start=\"1103\"\u003eAlti\u003c\/strong\u003e: Arieggiati e vellutati, privi di asprezze. Anche su impianti molto analitici, la gamma alta conserva brillantezza e musicalità senza affaticare l’ascolto.\u003c\/li\u003e\n\u003cli data-end=\"1465\" data-start=\"1269\"\u003e\n\u003cstrong data-end=\"1281\" data-start=\"1269\"\u003eDinamica\u003c\/strong\u003e: Fluida, musicale e ben proporzionata. Il quartetto restituisce una risposta coesa e naturale, con microtransienti ben gestiti e un comportamento lineare e affidabile in ogni valvola.\u003c\/li\u003e\n\u003cli data-end=\"1679\" data-start=\"1467\"\u003e\n\u003cstrong data-end=\"1481\" data-start=\"1467\"\u003eSoundstage\u003c\/strong\u003e: Ampio, tridimensionale e stabile. Grazie al matching accurato, la scena sonora risulta profondamente coerente, con ottima separazione tra i piani sonori e una sensazione di spazio ben distribuito.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"\" data-end=\"2051\" data-start=\"1681\"\u003eQuesta\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-end=\"1748\" data-start=\"1688\"\u003ecoppia matched di 12AX7 Sylvania prodotte per Baldwin\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eè una scelta eccellente per chi cerca una\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-end=\"1848\" data-start=\"1791\"\u003epresentazione timbrica raffinata, musicale e omogenea\u003c\/strong\u003e, ideale per\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-end=\"1979\" data-start=\"1861\"\u003epreamplificatori, amplificatori stereo dual-mono, DAC bilanciati, o sistemi hi-fi di fascia alta\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003edove la\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-end=\"2030\" data-start=\"1988\"\u003esimmetria e la precisione tra i canali\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efanno la differenza.\u003c\/p\u003e\n\u003ch3 data-end=\"2051\" data-start=\"1681\"\u003e\n\u003cstrong\u003e🎧 Uso in Amplificatori Hi-Fi\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/h3\u003e\n\u003cp class=\"\" data-end=\"2051\" data-start=\"1681\"\u003eIdeali per preamplificatori hi-fi valvolari di alto livello, integrati e phono stage, queste 12AX7 garantiscono\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-end=\"1852\" data-start=\"1794\"\u003emusicalità raffinata e coerenza timbrica\u003c\/strong\u003e. Perfette per chi cerca un suono classico americano degli anni ’50 con massima naturalezza.\u003c\/p\u003e\n\u003ch3 data-start=\"215\" data-end=\"691\"\u003e\n\u003cstrong\u003e🎸 Uso in Amplificatori per Chitarra e Basso\u003c\/strong\u003e\u003cbr data-start=\"263\" data-end=\"266\"\u003e\n\u003c\/h3\u003e\n\u003cp class=\"\" data-end=\"756\" data-start=\"247\"\u003eEccellenti anche per amplificatori per chitarra vintage (Fender, Ampeg, Gibson, ecc.), dove forniscono\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"2095\" data-end=\"2159\"\u003echiarezza, headroom generoso e distorsione armonica musicale.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3 data-end=\"1072\" data-start=\"758\"\u003e\u003cstrong\u003e🔊 Ideale per musicisti che cercano:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-end=\"1072\" data-start=\"758\"\u003eUniformità timbrica e risposta coerente su tutti i canali\u003c\/li\u003e\n\u003cli data-end=\"1072\" data-start=\"758\"\u003ePuliti tridimensionali, caldi e ben separati\u003c\/li\u003e\n\u003cli data-end=\"1072\" data-start=\"758\"\u003eUn overdrive fluido e armonico, ideale per jazz, blues e rock vintage\u003c\/li\u003e\n\u003cli data-end=\"1072\" data-start=\"758\"\u003eBassa microfonicità, perfetta anche in rack da studio o sistemi live professionali\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"2048\" data-start=\"1587\"\u003e\u003cstrong\u003e🎯 Nota per Audiofili e Tecnici\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp class=\"\" data-end=\"2048\" data-start=\"1587\"\u003eQuesta\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ematched pair Baldwin by Sylvania del 1959\u003c\/strong\u003e è un set selezionato con test “VERY STRONG” ed è perfetta sia per l’ascolto hi-fi di massima qualità che per l’uso in apparecchi professionali e strumenti musicali esigenti. Una scelta di pregio per collezionisti e appassionati.\u003cbr\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 = -2V\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMedia 100%:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eGm = 1600 ; Ia = 1,2 mA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRisultato del Test:\u003c\/strong\u003e BUONO \/ 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\u003e\n\u003cstrong\u003eSezione 1:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eGm = 1300 ; Ia = 0,7 mA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSezione 2:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eGm = 1400 ; Ia = 0,9 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\u003e\n\u003cstrong\u003eSezione 1:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eGm = 1200 ; Ia = 0,7 mA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSezione 2:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eGm = 1500 ; Ia = 0,9 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 \u003cmeta charset=\"utf-8\"\u003eStandard. Testate e conformi per l'uso in hi-fi e amplificatori per chitarra. Non consigliate per la posizione V1 negli amplificatori per chitarra ad alta sensibilità.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eQualità dell’Emissione:\u003c\/strong\u003e Molto Buona – Emissione regolare, adatta a qualsiasi applicazione.\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\u003cspan\u003e \u003c\/span\u003eValvole Vintage - Testate e perfettamente funzionanti. 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 \u003c\/span\u003eMolto Buone – Scritte ben leggibili con lievi segni del tempo, nessun difetto evidente. Vedi foto per i dettagli.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCodice di Fabbricazione:\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e312 913 → 312 indica il fabbricante, ovvero Sylvania Electric Products Inc., Emporium, Pa. - 913 → 9 ( su tre cifre ) → 1959 - 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":"SYLVANIA","offers":[{"title":"Default Title","offer_id":54080185663836,"sku":"02797","price":504.0,"currency_code":"CNY","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0616\/3775\/5127\/files\/1_d6cb7dd1-9d0c-46c0-bc3f-4d7c4828e039.jpg?v=1740994488","url":"https:\/\/vacuumtubestreasures.com\/it-cn\/products\/12ax7-ecc83-nos-baldwin-by-sylvania-long-gray-plates-large-halo-getter-matched-tubes-made-in-usa-49-copia-1","provider":"Vacuum Tubes Treasures","version":"1.0","type":"link"}