{"product_id":"12ax7a-ecc83-baldwin-raytheon-matched-pair-tubes-long-black-plates-halo-getter-usa-1960s-1","title":"12AX7A ECC83 Baldwin RAYTHEON Matched Pair Tubes – Long Black Plates Halo Getter USA 1960s","description":"\u003cp\u003e\u003cstrong\u003e12AX7A ( ECC83 ) Baldwin by RAYTHEON Long Black Plates Halo Getter Matched Pair Tubes Made in USA '60s\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eDescrizione Sonora:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"235\" data-end=\"736\"\u003eLa \u003cstrong data-start=\"238\" data-end=\"268\"\u003e12AX7A Baldwin by Raytheon\u003c\/strong\u003e, in questa rara versione degli anni ’60 con \u003cstrong data-start=\"313\" data-end=\"336\"\u003eplacche lunghe nere\u003c\/strong\u003e e \u003cstrong data-start=\"339\" data-end=\"356\"\u003egetter a halo\u003c\/strong\u003e, offre una delle voci più naturali, trasparenti e musicalmente equilibrate tra le valvole americane selezionate per uso organistico e audio professionale. Etichettate \u003cem data-start=\"524\" data-end=\"533\"\u003eBaldwin\u003c\/em\u003e ma prodotte da \u003cstrong data-start=\"549\" data-end=\"561\"\u003eRaytheon\u003c\/strong\u003e con specifiche selezionate, queste valvole erano destinate a sistemi in cui \u003cstrong data-start=\"638\" data-end=\"664\"\u003eaffidabilità elettrica\u003c\/strong\u003e, \u003cstrong data-start=\"666\" data-end=\"689\"\u003ebassa microfonicità\u003c\/strong\u003e e \u003cstrong data-start=\"692\" data-end=\"713\"\u003euniformità sonora\u003c\/strong\u003e erano imprescindibili.\u003c\/p\u003e\n\u003cp data-start=\"738\" data-end=\"1010\"\u003eQuesta coppia \u003cstrong data-start=\"752\" data-end=\"763\"\u003ematched\u003c\/strong\u003e si distingue per un suono \u003cstrong data-start=\"790\" data-end=\"812\"\u003eneutro ma dinamico\u003c\/strong\u003e, con una resa timbrica \u003cstrong data-start=\"836\" data-end=\"864\"\u003eaperta e tridimensionale\u003c\/strong\u003e, ideale per \u003cstrong data-start=\"877\" data-end=\"903\"\u003epreamplificatori hi-fi\u003c\/strong\u003e, \u003cstrong data-start=\"905\" data-end=\"923\"\u003estadi phono MM\u003c\/strong\u003e, o \u003cstrong data-start=\"927\" data-end=\"944\"\u003edriver stages\u003c\/strong\u003e in cui la chiarezza e la coerenza tra i canali sono determinanti.\u003c\/p\u003e\n\u003cp data-start=\"1017\" data-end=\"1207\"\u003e\u003cstrong data-start=\"1017\" data-end=\"1026\"\u003eBassi\u003c\/strong\u003e: definiti e asciutti. La gamma bassa è \u003cstrong data-start=\"1066\" data-end=\"1090\"\u003econtenuta ma precisa\u003c\/strong\u003e, senza esuberanze, ideale per impianti che prediligono la \u003cstrong data-start=\"1149\" data-end=\"1183\"\u003evelocità e la lettura armonica\u003c\/strong\u003e dei registri inferiori.\u003c\/p\u003e\n\u003cp data-start=\"1209\" data-end=\"1491\"\u003e\u003cstrong data-start=\"1209\" data-end=\"1217\"\u003eMedi\u003c\/strong\u003e: naturali e articolati. Le frequenze medie sono \u003cstrong data-start=\"1266\" data-end=\"1292\"\u003ecentrate e trasparenti\u003c\/strong\u003e, con una resa \u003cstrong data-start=\"1307\" data-end=\"1366\"\u003emolto equilibrata delle voci e degli strumenti acustici\u003c\/strong\u003e. Nessuna enfasi artificiale: la musicalità è \u003cstrong data-start=\"1412\" data-end=\"1436\"\u003esobria e controllata\u003c\/strong\u003e, perfetta per chi cerca un ascolto neutro e analitico.\u003c\/p\u003e\n\u003cp data-start=\"1493\" data-end=\"1682\"\u003e\u003cstrong data-start=\"1493\" data-end=\"1501\"\u003eAlti\u003c\/strong\u003e: nitidi e raffinati. La parte alta è \u003cstrong data-start=\"1539\" data-end=\"1558\"\u003eestesa e ariosa\u003c\/strong\u003e, ma sempre \u003cstrong data-start=\"1570\" data-end=\"1587\"\u003eben integrata\u003c\/strong\u003e, con un \u003cstrong data-start=\"1596\" data-end=\"1640\"\u003edettaglio fine e una brillantezza sobria\u003c\/strong\u003e che non affatica, anche a volumi elevati.\u003c\/p\u003e\n\u003cp data-start=\"1684\" data-end=\"1872\"\u003e\u003cstrong data-start=\"1684\" data-end=\"1696\"\u003eDinamica\u003c\/strong\u003e: pronta e naturale. La coppia Raytheon reagisce con \u003cstrong data-start=\"1749\" data-end=\"1782\"\u003eottima velocità ai transitori\u003c\/strong\u003e, offrendo una dinamica \u003cstrong data-start=\"1806\" data-end=\"1830\"\u003eprogressiva e fluida\u003c\/strong\u003e, senza mai diventare nervosa o spigolosa.\u003c\/p\u003e\n\u003cp data-start=\"1874\" data-end=\"2051\"\u003e\u003cstrong data-start=\"1874\" data-end=\"1888\"\u003eSoundstage\u003c\/strong\u003e: aperto e ben definito. L’immagine stereo è \u003cstrong data-start=\"1933\" data-end=\"1963\"\u003eampia, coerente e ordinata\u003c\/strong\u003e, con una buona \u003cstrong data-start=\"1979\" data-end=\"2011\"\u003eseparazione dei piani sonori\u003c\/strong\u003e e una \u003cstrong data-start=\"2018\" data-end=\"2050\"\u003eresa realistica dello spazio\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"2058\" data-end=\"2407\"\u003e🎧 \u003cstrong data-start=\"2061\" data-end=\"2105\"\u003eUso in Amplificatori Hi-Fi e Phono Stage\u003c\/strong\u003e\u003cbr data-start=\"2105\" data-end=\"2108\"\u003eQuesta coppia matched è ideale in \u003cstrong data-start=\"2142\" data-end=\"2169\"\u003epreamplificatori stereo\u003c\/strong\u003e, \u003cstrong data-start=\"2171\" data-end=\"2189\"\u003estadi phono MM\u003c\/strong\u003e, o sezioni line-stage di impianti di alta qualità. Il suono \u003cstrong data-start=\"2250\" data-end=\"2287\"\u003eneutro, trasparente e controllato\u003c\/strong\u003e le rende perfette per sistemi in cui la \u003cstrong data-start=\"2328\" data-end=\"2349\"\u003ecoerenza timbrica\u003c\/strong\u003e e la \u003cstrong data-start=\"2355\" data-end=\"2388\"\u003eprecisione della scena sonora\u003c\/strong\u003e sono fondamentali.\u003c\/p\u003e\n\u003cp data-start=\"2409\" data-end=\"2740\"\u003e🎸 \u003cstrong data-start=\"2412\" data-end=\"2457\"\u003eUso in Amplificatori per Chitarra e Basso\u003c\/strong\u003e\u003cbr data-start=\"2457\" data-end=\"2460\"\u003eNei circuiti preamp per chitarra, queste Raytheon offrono un suono \u003cstrong data-start=\"2527\" data-end=\"2546\"\u003epulito e aperto\u003c\/strong\u003e, con \u003cstrong data-start=\"2552\" data-end=\"2573\"\u003eheadroom generoso\u003c\/strong\u003e e una \u003cstrong data-start=\"2580\" data-end=\"2613\"\u003esaturazione armonica graduale\u003c\/strong\u003e, ideale per \u003cstrong data-start=\"2626\" data-end=\"2657\"\u003esuoni jazz, blues e ambient\u003c\/strong\u003e, o come primo stadio in ampli high-end per un suono meno compresso e più definito.\u003c\/p\u003e\n\u003cp data-start=\"2742\" data-end=\"3145\"\u003e🎯 \u003cstrong data-start=\"2745\" data-end=\"2777\"\u003eNota per audiofili e tecnici\u003c\/strong\u003e\u003cbr data-start=\"2777\" data-end=\"2780\"\u003eUna \u003cstrong data-start=\"2784\" data-end=\"2806\"\u003ecoppia matched USA\u003c\/strong\u003e affidabile e selezionata, con \u003cstrong data-start=\"2837\" data-end=\"2860\"\u003eplacche lunghe nere\u003c\/strong\u003e e \u003cstrong data-start=\"2863\" data-end=\"2880\"\u003egetter a halo\u003c\/strong\u003e, capace di offrire \u003cstrong data-start=\"2900\" data-end=\"2937\"\u003etrasparenza, coerenza e dettaglio\u003c\/strong\u003e senza colorazioni artificiali. Ideale sia per applicazioni hi-fi critiche che per strumenti musicali di pregio. L’etichettatura \u003cem data-start=\"3066\" data-end=\"3075\"\u003eBaldwin\u003c\/em\u003e ne certifica la selezione all’origine per applicazioni professionali.\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 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\u003e\n\u003cstrong\u003eSezione 1:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eGm = 1600 ; Ia = 1,1 mA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSezione 2:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eGm = 1500 ; Ia = 1,0 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 = 1400 ; Ia = 0,8 mA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSezione 2:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eGm = 1500 ; Ia = 1,0 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\"\u003eBassa. Testate e conformi per l'uso in 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\u003eVintage - 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 Buone – Scritte parzialmente erose, ma ancora leggibili. Corpo della valvola in buone condizioni. Vedi foto per i dettagli.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCodice di Fabbricazione: \u003c\/strong\u003eP28061-?? - Fabbricazione RAYTHEON USA - del 1961\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003ca rel=\"noopener\" title=\"Perché le nostre valvole sono diverse – il protocollo VTT che migliora suono, affidabilità e durata\" href=\"https:\/\/vacuumtubestreasures.com\/blogs\/notizie\/perche-le-nostre-valvole-sono-diverse\" target=\"_blank\"\u003e\u003cstrong\u003eScopra perché le nostre valvole sono diverse →\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"RAYTHEON","offers":[{"title":"Default Title","offer_id":55018539712860,"sku":"03009","price":117.95,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0616\/3775\/5127\/files\/2_3fbaddb9-ae12-428e-99cd-9b716e5e76e6.jpg?v=1752673686","url":"https:\/\/vacuumtubestreasures.com\/it-hr\/products\/12ax7a-ecc83-baldwin-raytheon-matched-pair-tubes-long-black-plates-halo-getter-usa-1960s-1","provider":"Vacuum Tubes Treasures","version":"1.0","type":"link"}