ED TUBE QUAD #VALVO POST-RÖHRE #TUBE #VALVE #LAMPE

PROFESSIONAL VERSION OF AD1 LONG LIFE

TESTED 60mA #QUARTET DIRECT HEATER TRIODE MONO PLATE

RIBBED ANODE DOUBLE GETTER large plate 7 PIN SOCKET SEAT BASE

POST TUBE PUBLIC SERVICE

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 30