5U4GB TAD PREMIUM SELECTED straight bottleThe Straight One!The 5U4GB has a straight glass envelope. This type has been widely used in U. S-made guitar amps from the 1950s to the 70s. The 5U4GB has a slow start feature, which protects output tubes from high voltage peaks when you switch the power on. Q: When does a tube become a Premium Selected tube?A: All tubes labeled Premium Selected have passed the following tests:- Plate Current (PC) and Amplification (TC)- Low Noise Test- Microphonic Test- Sonic Tests- Shock Tests- Listening Tests- ShortsLeakage TestsTAD Premium Selected tubes are guaranteed for a period of 6 months (according to terms of warranties) for the quality criteria mentioned above. Pentru alte modele de lampa, va rugam nu ezitati sa ne contactati!Vom verifica cu celeritatea disponibilitatea in stoc in depozitul partenerului externSe pot comanda lampi Matching in PAIRS in set de 2 sau echilibrate, testate si selectate 4, 6 sau 8 bucati in functie de necesitate si desigur disponibilitatea furnizorului nostru extern. Aceste servicii sunt contra cost si difera in functie de model, pentru detalii ne puteti contacta!Comercializam lampi: TAD, Electro-Harmonix, Genalex, Mullard, Psvane, Shuguang, Svetlana, Sovtek, Philips, Tesla, Tung-Sol, JJ, KR Audio, MusicMan, Marshall etc

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