RCA 6SN7 GT TUBE anni 40 SUO MAESTRO VOCE GRIGIO FUMO FOIL GETTER SET ABBINATO
HIS MASTERS VOICE. MATCHED SET. Closely Matched Codes: 9-52 7-43. I mark every tube in order to avoid tube rolling! EXCL USIVE HIGH FIDELTY TUBE. GRAY SMOKE. Tube Life Remaining. BEST TUBES ON THE MARKET. NO LEAKS. NO SHORTS.