{"product_id":"12au7a-ecc82-lowray-by-rca-clear-top-1959-nos-matched-pair-long-gray-plates-amplitrex-tested","title":"12AU7A \/ ECC82 Lowray by RCA Clear Top 1959 - NOS Matched Pair - Long Gray Plates - Amplitrex Tested","description":"\u003cp class=\"p1\"\u003e\u003cb\u003e12AU7A \/ ECC82 LOWRAY by RCA – Clear Top – 1959 – NOS Matched Pair – Long Gray Plates – Amplitrex Tested – Low Noise \u0026amp; Microphonics\u003c\/b\u003e\u003c\/p\u003e\n\u003ch3 style=\"text-align: left;\"\u003e\u003cstrong\u003eDescrizione:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp class=\"p1\"\u003eQuesta \u003cspan class=\"s1\"\u003e\u003cb\u003ecoppia matched di 12AU7A \/ ECC82 LOWRAY by RCA\u003c\/b\u003e\u003c\/span\u003e, prodotta negli Stati Uniti nel \u003cspan class=\"s1\"\u003e\u003cb\u003e1959\u003c\/b\u003e\u003c\/span\u003e, appartiene alla celebre serie \u003cspan class=\"s1\"\u003e\u003cb\u003eClear Top\u003c\/b\u003e\u003c\/span\u003e di casa RCA, riconoscibile per la sommità trasparente priva di getter flash superiore.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eLa costruzione con \u003cspan class=\"s1\"\u003e\u003cb\u003elong gray plates\u003c\/b\u003e\u003c\/span\u003e e getter laterale è tipica della produzione RCA di fine anni ’50, nota per affidabilità, stabilità e impostazione timbrica equilibrata. La marchiatura \u003cspan class=\"s1\"\u003e\u003cb\u003eLowray\u003c\/b\u003e\u003c\/span\u003e identifica una fornitura selezionata per applicazioni professionali e strumentali.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eLe valvole sono \u003cspan class=\"s1\"\u003e\u003cb\u003eNOS autentiche\u003c\/b\u003e\u003c\/span\u003e, selezionate come \u003cspan class=\"s1\"\u003e\u003cb\u003eMatched Pair\u003c\/b\u003e\u003c\/span\u003e, classificate \u003cspan class=\"s1\"\u003e\u003cb\u003eLow Noise \u0026amp; Microphonics\u003c\/b\u003e\u003c\/span\u003e e testate nel nostro laboratorio su \u003cspan class=\"s1\"\u003e\u003cb\u003eAmplitrex AT-1000\u003c\/b\u003e\u003c\/span\u003e, pronte per applicazioni hi-fi e musicali di qualità.\u003c\/p\u003e\n\u003ch3 style=\"text-align: left;\"\u003e\u003cstrong\u003eCaratteristiche Sonore\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp class=\"p1\"\u003e\u003cb\u003eBassi: \u003c\/b\u003ePrecisi, asciutti e ben controllati. La gamma bassa è lineare e definita, con buona articolazione e ottimo controllo del ritmo.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cb\u003eMedi: \u003c\/b\u003eChiari e naturali. Le voci risultano ben focalizzate e credibili, con una tessitura armonica pulita e coerente.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cb\u003eAlti: \u003c\/b\u003eAperti e ariosi. L’estremo superiore è luminoso ma composto, con buona estensione e grana fine, tipica delle Clear Top RCA.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cb\u003eDinamica: \u003c\/b\u003eVivace e stabile. Ottima microdinamica e risposta pronta ai transienti, con comportamento coerente e prevedibile.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cb\u003eSoundstage: \u003c\/b\u003eScena sonora ampia e ben organizzata, con buona separazione dei piani e immagine centrale ben definita.\u003c\/p\u003e\n\u003ch3 style=\"text-align: left;\"\u003e\u003cb\u003e🎧 Uso in Amplificatori Hi-Fi\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp class=\"p1\"\u003eIdeali per:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"p1\"\u003epreamplificatori linea\u003c\/li\u003e\n\u003cli class=\"p1\"\u003estadi driver\u003c\/li\u003e\n\u003cli class=\"p1\"\u003eamplificatori che richiedono chiarezza e precisione\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"p1\"\u003eParticolarmente indicate per sistemi orientati alla trasparenza e al controllo.\u003c\/p\u003e\n\u003ch3 style=\"text-align: left;\"\u003e\u003cb\u003e🎸 Uso in Applicazioni Musicali\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp class=\"p1\"\u003eMolto valide anche in:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"p1\"\u003eamplificatori per strumenti\u003c\/li\u003e\n\u003cli class=\"p1\"\u003eposizioni sensibili grazie alla classificazione \u003cspan class=\"s1\"\u003e\u003cb\u003eLow Noise \u0026amp; Microphonics\u003c\/b\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"p1\"\u003eOffrono risposta definita, buona articolazione e comportamento stabile nel tempo.\u003c\/p\u003e\n\u003ch3 style=\"text-align: left;\"\u003e\u003cstrong\u003e🎯 Nota per audiofili e tecnici\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli class=\"p1\"\u003e\n\u003cspan class=\"s1\"\u003eProduzione \u003c\/span\u003e\u003cb\u003eRCA – Made in USA – 1959\u003c\/b\u003e\n\u003c\/li\u003e\n\u003cli class=\"p1\"\u003eVersione \u003cspan class=\"s1\"\u003e\u003cb\u003eClear Top\u003c\/b\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"p1\"\u003eMarchio \u003cspan class=\"s1\"\u003e\u003cb\u003eLowray\u003c\/b\u003e\u003c\/span\u003e (fornitura selezionata)\u003c\/li\u003e\n\u003cli class=\"p1\"\u003eLong Gray Plates\u003c\/li\u003e\n\u003cli class=\"p1\"\u003eNOS – New Old Stock\u003c\/li\u003e\n\u003cli class=\"p1\"\u003eMatched Pair selezionata\u003c\/li\u003e\n\u003cli class=\"p1\"\u003e\n\u003cspan class=\"s1\"\u003eTestate su \u003c\/span\u003e\u003cb\u003eAmplitrex AT-1000\u003c\/b\u003e\n\u003c\/li\u003e\n\u003cli class=\"p1\"\u003e\u003cb\u003eLow Noise \u0026amp; Microphonics\u003c\/b\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"p3\"\u003eUna coppia classica della produzione americana RCA di fine anni ’50, apprezzata per chiarezza, equilibrio e affidabilità, nel pieno stile Vacuum Tubes Treasures.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3 style=\"text-align: left;\"\u003e\u003cstrong\u003eRisultati dei Test:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cstrong\u003eValvola testata su AMPLITREX AT-1000 Tube Tester:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondizioni di Test:\u003c\/strong\u003e Va = 250V, Vg = -8.5V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMedia 100%:\u003c\/strong\u003e Gm = 2200 ; Ia = 10.5 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 style=\"text-align: left;\"\u003e\u003cstrong\u003eValvola #1:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eSezione 1:\u003c\/strong\u003e Gm = 2100 ; Ia = 10.0 mA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSezione 2:\u003c\/strong\u003e Gm = 2120 ; Ia = 10.2 mA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cstrong\u003eValvola #2:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eSezione 1:\u003c\/strong\u003e Gm = 2000 ; Ia = 9.0 mA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSezione 2:\u003c\/strong\u003e Gm = 2200 ; Ia = 10.2 mA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cstrong\u003eTest Addizionali eseguiti:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\n\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\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQualità dell’Emissione:\u003c\/strong\u003e Eccellente – Emissione molto forte e stabile, senza fluttuazioni.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCortocircuiti e GAS:\u003c\/strong\u003e Assenti.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3 style=\"text-align: left;\"\u003e\u003cstrong\u003eCondizioni:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul style=\"text-align: left;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondizioni:\u003c\/strong\u003e NOS - New Old Stock - Testate e perfettamente funzionanti. Fornite in nostra scatola personalizzata per una protezione ottimale.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunzionalità:\u003c\/strong\u003e Perfettamente operative.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondizioni estetiche:\u003c\/strong\u003e Molto Buone – Scritte ben leggibili con lievi segni del tempo, nessun difetto evidente. Vedi foto per i dettagli.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cstrong\u003eCodice di Fabbricazione: \u003c\/strong\u003e\u003c\/p\u003e\n\u003cul style=\"text-align: left;\"\u003e\u003c\/ul\u003e\n\u003cp style=\"text-align: left;\"\u003e59-26 → RMA\/EIA Open Date Code → fabbricata la 26ª settimana del 1959 - \u003cmeta charset=\"utf-8\"\u003e274 \u003cmeta charset=\"utf-8\"\u003e→ Radio Corporation of America, Camden, N. J.\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\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":56888998134108,"sku":"03449","price":99.0,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0616\/3775\/5127\/files\/3_0eff7941-c00f-4264-8e27-a327e12f5114.jpg?v=1772551719","url":"https:\/\/vacuumtubestreasures.com\/it-mc\/products\/12au7a-ecc82-lowray-by-rca-clear-top-1959-nos-matched-pair-long-gray-plates-amplitrex-tested","provider":"Vacuum Tubes Treasures","version":"1.0","type":"link"}