6L6 TUBE QUAD MARCONI MADE IN ITALY MATCHED QUARTET

MILITARY VERSION DD GETTER YELLOW LABEL #BLACK BASE #FINEST VALVES #SMOKED

THE BEST SOUNDING TUBES ! VERY VERY RARE !! IDENTICAL INNER STRUCTURE ALL TUBES HAVE GOT YELLOW LABELS

#VALVE SUIT MCINTOSH #MC240 #LEAK #QUAD 2 #MC30 #350B

TEST RESULTS :

TUBE 1: 48
TUBE 2: 48
TUBE 3: 46
TUBE 4: 46

DD GETTER ITALIAN TUBES OUTSTANDING PERFORMANCE 6L6G TUBE SMOKED QUAD FOR  VINTAGE AMPLIFIER

tube valve lampe röhre tsf 진공관 真空管 HAM RADIO audio hi-end hi-fi diy POWER AMPLIFIER Pre-Amplifier Preamp Pri stereo SE Single Ended PP Push-Pull

box 43