{"product_id":"12ay7-rca-nos-nib-gray-plates-o-getter-tested-tubes-made-in-usa-2","title":"12AY7 RCA NOS Gray Plates Halo Getter AMPLITREX Tested Tube MADE IN USA","description":"\u003cp\u003e\u003cstrong\u003e12AY7 RCA NOS Gray Plates Halo Getter AMPLITREX Tested Tube MADE IN USA\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eDescrizione:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"119\" data-end=\"524\"\u003eProponiamo una \u003cstrong data-start=\"134\" data-end=\"147\"\u003e12AY7 RCA\u003c\/strong\u003e (designazione 6072) in condizioni \u003cstrong data-start=\"182\" data-end=\"193\"\u003eNOS\u003c\/strong\u003e (\u003cem data-start=\"195\" data-end=\"222\"\u003eNew Old Stock\u003c\/em\u003e), con classica costruzione \u003cstrong data-start=\"250\" data-end=\"265\"\u003egray plates\u003c\/strong\u003e e \u003cstrong data-start=\"268\" data-end=\"280\"\u003ehalo getter\u003c\/strong\u003e. Prodotta negli \u003cstrong data-start=\"297\" data-end=\"312\"\u003eStati Uniti\u003c\/strong\u003e, questa valvola è \u003cstrong data-start=\"331\" data-end=\"342\"\u003etestata\u003c\/strong\u003e e pronta all’uso: rappresenta la scuola sonora RCA più elegante, con rumorosità contenuta, ottima micro-dettaglio e una musicalità naturale che favorisce ascolti lunghi e rilassati.\u003c\/p\u003e\n\u003ch3 data-start=\"526\" data-end=\"552\"\u003eDescrizione Sonora\u003c\/h3\u003e\n\u003cp data-start=\"553\" data-end=\"1019\"\u003e\u003cstrong data-start=\"553\" data-end=\"563\"\u003eBassi:\u003c\/strong\u003e asciutti e tesi, ben controllati; fondamentale pulita e articolata senza rigonfiamenti.\u003cbr data-start=\"651\" data-end=\"654\"\u003e\u003cstrong data-start=\"654\" data-end=\"663\"\u003eMedi:\u003c\/strong\u003e vellutati e trasparenti; voci credibili e strumenti acustici con corpo e naturalezza.\u003cbr data-start=\"749\" data-end=\"752\"\u003e\u003cstrong data-start=\"752\" data-end=\"761\"\u003eAlti:\u003c\/strong\u003e fini e garbati; estensione ariosa senza asprezze, grana elegante tipica RCA.\u003cbr data-start=\"838\" data-end=\"841\"\u003e\u003cstrong data-start=\"841\" data-end=\"854\"\u003eDinamica:\u003c\/strong\u003e fluida e proporzionata; micro-contrasto leggibile e transitori controllati.\u003cbr data-start=\"930\" data-end=\"933\"\u003e\u003cstrong data-start=\"933\" data-end=\"948\"\u003eSoundstage:\u003c\/strong\u003e scena ordinata e stabile; buona profondità e fuoco preciso sul centro.\u003c\/p\u003e\n\u003ch3 data-start=\"1021\" data-end=\"1056\"\u003e🎧 Uso in Amplificatori Hi-Fi\u003c\/h3\u003e\n\u003cp data-start=\"1057\" data-end=\"1347\"\u003eLa \u003cstrong data-start=\"1060\" data-end=\"1073\"\u003e12AY7 RCA\u003c\/strong\u003e è consigliata per \u003cspan class=\"s1\"\u003e\u003cb\u003estadi di ingresso o driver\u003c\/b\u003e\u003c\/span\u003e dove non sia richiesto un perfetto bilanciamento tra le sezioni e progetti hi-fi che ricercano \u003cstrong data-start=\"1180\" data-end=\"1229\"\u003etrasparenza, basso rumore e coerenza timbrica\u003c\/strong\u003e. Ottima come alternativa più “raffinata” alla 12AX7 quando si desidera un guadagno più contenuto e maggiore headroom.\u003c\/p\u003e\n\u003ch3 data-start=\"1349\" data-end=\"1387\"\u003e🎸 Uso in Amplificatori Musicali\u003c\/h3\u003e\n\u003cp data-start=\"1388\" data-end=\"1695\"\u003eMolto apprezzata in \u003cstrong data-start=\"1408\" data-end=\"1414\"\u003eV1\u003c\/strong\u003e o negli stadi d’ingresso di ampli per chitarra e microfonici, dove offre \u003cstrong data-start=\"1488\" data-end=\"1561\"\u003eclean headroom superiore, compressione naturale e attacco controllato\u003c\/strong\u003e. Perfetta per blues, jazz, studio recording e per chi desidera chiarezza, dinamica morbida e minore saturazione rispetto a una 12AX7.\u003c\/p\u003e\n\u003ch3 data-start=\"1697\" data-end=\"1734\"\u003e🎯 Nota per Audiofili e Tecnici\u003cstrong data-start=\"1737\" data-end=\"1747\"\u003e\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003cp class=\"p1\"\u003eValvola \u003cspan class=\"s1\"\u003e\u003cb\u003eNOS originale RCA\u003c\/b\u003e\u003c\/span\u003e, testata e verificata, con \u003cspan class=\"s1\"\u003e\u003cb\u003esezioni bilanciate\u003c\/b\u003e\u003c\/span\u003e. Ideale per chi cerca il \u003cspan class=\"s1\"\u003e\u003cb\u003ecarattere sonoro RCA\u003c\/b\u003e\u003c\/span\u003e in posizioni critiche. Una \u003cstrong data-start=\"2036\" data-end=\"2051\"\u003eRCA d’epoca\u003c\/strong\u003e equilibrata e affidabile: la firma timbrica americana classica, con eleganza, ordine e naturalezza.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cstrong\u003eRisultati dei Test\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eTestate su AMPLITREX AT-1000 Tube Tester\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVoltage Test:\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003eVa = 250V, Vg = -4V\u003cstrong\u003e\u003cbr\u003eMedia 100%:\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003eGm = 1700 ; Ia = 3.0 mA\u003cstrong\u003e\u003cbr\u003eRISULTATO DEL TEST:\u003c\/strong\u003e FORTE\u003c\/p\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: Gm = 1500 ; Ia = 2.3 mA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSezione 2\u003c\/strong\u003e: Gm = 1510 ; Ia = 2.5 mA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003eTest Addizionali eseguiti:\u003c\/strong\u003e\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eMicrofonicità e Noise:\u003c\/strong\u003e Bassi. Testata e conforme per l'uso in hi-fi anche in stadi phono e in amplificatori per chitarra. \u003cstrong\u003eAdatta anche in V1.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eBilanciamento:\u003c\/strong\u003e Le 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\u003cspan\u003e NOS - New Old Stock - Testata e funzionante - Fornite in nostra scatola personalizzata per una protezione ottimale. \u003c\/span\u003e\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 Eccellenti – Scritte ottimamente conservate, minimi segni del tempo. Vedi foto per i dettagli.\u003c\/span\u003e\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCodice di Fabbricazione:\u003c\/strong\u003e 73-09 → RMA\/EIA Open Date Code → fabbricata la 9ª settimana del 1973\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":"RCA","offers":[{"title":"Default Title","offer_id":42990263140599,"sku":"03555","price":8700.0,"currency_code":"ALL","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0616\/3775\/5127\/files\/1_040f8910-c58e-4d02-ba49-5af7efe402ce.jpg?v=1777381965","url":"https:\/\/vacuumtubestreasures.com\/it-al\/products\/12ay7-rca-nos-nib-gray-plates-o-getter-tested-tubes-made-in-usa-2","provider":"Vacuum Tubes Treasures","version":"1.0","type":"link"}