{"product_id":"jan-12au7-ecc82-tung-sol-black-plates-amplitrex-tested-d-getter-made-in-usa-50s","title":"JAN 12AU7 \/ ECC82 TUNG-SOL Black Plates D Getter Balanced Tube Made in USA '50s","description":"\u003ch3\u003e\n\u003cmeta charset=\"utf-8\"\u003e \u003cstrong\u003eJAN 12AU7 \/ ECC82 TUNG-SOL Black Plates D Getter Made in USA '50s\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eAMPLITREX Tested \u003cmeta charset=\"utf-8\"\u003e– Low Noise \u0026amp; Microphonics –\u003cspan\u003e VERY STRONG \u003cmeta charset=\"utf-8\"\u003e– Balanced \u003cmeta charset=\"utf-8\"\u003e–  Vintage TUNG-SOL Production\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eRisultati dei Test:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eValvola testata su\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAMPLITREX AT-1000\u003cspan\u003e \u003c\/span\u003e\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 = -8.5V\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMedia 100%:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eGm = 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\u003e\u003cstrong\u003eValvola:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSezione 1:\u003c\/strong\u003e Gm = 2300 ; Ia = 12.2 mA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSezione 2:\u003c\/strong\u003e Gm = 2300 ; Ia = \u003cmeta charset=\"utf-8\"\u003e12.2 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\u003eBurn-in \/ Stability Test:\u003c\/strong\u003e 48h – OK\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eMicrofonicità:\u003c\/strong\u003e Bassa. Testate e conformi per l’impiego in apparecchiature hi-fi e amplificatori per chitarra, anche negli stadi audio più sensibili.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNoise: \u003c\/strong\u003eBasso e ben controllato. Funzionamento silenzioso in ambito hi-fi e negli amplificatori musicali nelle posizioni previste.\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eBilanciamento:\u003c\/strong\u003e Eccellente - 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\u003ch3\u003e\u003cstrong\u003eDescrizione:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003ePregiata \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eJAN 12AU7 \/ ECC82 di autentica produzione TUNG-SOL statunitense\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, attribuibile indicativamente agli \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eanni ’50\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e sulla base delle caratteristiche costruttive. La configurazione con \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eplacche nere e getter a D\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e appartiene alla produzione americana d’epoca più ricercata ed è qui proposta nella robusta versione militare \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eJAN\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, particolarmente interessante per apparecchi hi-fi e amplificatori valvolari di qualità.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eTestata accuratamente con \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eAMPLITREX AT-1000\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, ha registrato valori identici sulle due sezioni: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eGm 2300 \/ 2300\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e e \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eIa 12,2 \/ 12,2 mA\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. Rispetto ai valori di riferimento della 12AU7, queste misurazioni confermano un’emissione \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eVERY STRONG\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, superiore al valore nominale, insieme a un \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003ebilanciamento praticamente perfetto\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. Questa eccezionale simmetria rende la valvola particolarmente indicata anche come \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003ephase inverter\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, oltre che come driver o negli stadi di linea di sistemi hi-fi e amplificatori per chitarra.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIl \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eburn-in di 48 ore\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e ha confermato un funzionamento stabile e privo di fluttuazioni. La selezione \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eLow Noise \u0026amp; Microphonics\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e garantisce rumore basso e ben controllato, permettendone l’impiego anche negli stadi audio più sensibili. \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eCortocircuiti e gas sono assenti.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDal punto di vista sonoro, le TUNG-SOL americane di questa generazione sono generalmente apprezzate per una presentazione \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003edinamica, corposa e naturale\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, con gamma media presente e musicale, bassi solidi e ben articolati e alte pulite, definite ma mai inutilmente aggressive. Una valvola capace di offrire \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eenergia, equilibrio e ottima intelligibilità\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, conservando il carattere autentico della migliore produzione vintage USA.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eUna pregiata \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eJAN 12AU7 \/ ECC82 TUNG-SOL Black Plates D Getter\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, realmente testata e selezionata da \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eVacuum Tubes Treasures\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e per emissione \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eVERY STRONG\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003ebilanciamento eccezionale\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003ebasso rumore\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e e piena stabilità operativa.\u003c\/span\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cstrong\u003eCondizioni:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondizioni:\u003cspan\u003e \u003c\/span\u003e\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\u003cspan\u003e Sufficienti – Scritte quasi completamente scomparse. 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\u003cspan\u003e Codice non decifrabile. Produzione attribuibile indicativamente agli anni ’50 sulla base delle caratteristiche costruttive.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\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":"TUNG-SOL","offers":[{"title":"Default Title","offer_id":59086173110620,"sku":"03804V","price":659.0,"currency_code":"NOK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0616\/3775\/5127\/files\/8_5bbcb3ec-71a5-4594-b02f-b1201e92f382.jpg?v=1789143674","url":"https:\/\/vacuumtubestreasures.com\/it-no\/products\/jan-12au7-ecc82-tung-sol-black-plates-amplitrex-tested-d-getter-made-in-usa-50s","provider":"Vacuum Tubes Treasures","version":"1.0","type":"link"}