ECC33 röhre MULLARD TUBE 6SN7 BRITISH roehre vorverstärker
ECC 33 = B65 33S30 PRE PREAMPLIFIER PREAMP TUBE
BLACK BASE BLACKBURN PLANT
B65 33S30 6SN7GT 6SN7GTB 6SN7
TWIN TRIODE DOUBLE TRIODE
CODE 1324 C3
OLDEST PRODUCTION DOME
GREY PLATES SMOOTH PLATES
LARGE D GETTER BOTTOM DOUBLE WELDED
LEGENDARY TUBE BRITISH MADE VALVE PERFECT FOR PRE-AMPLIFIER HI-END
USED TUBE TESTED WITH TUBE TESTER TV7D/U CALIBRATED
TEST RESULTS AS FOLLOW
TRIODE 1 = 92
TRIODE 2 = 92
( REFERENCE GOOD ON TV7D/U CALIBRATED IS 50 /50 )
Socket Octal K8A
Filament Heater Vf 6.3 Volt / If 0.6 Ampere / Indirect / Parallel, ~ = (AC/DC)
tube valve lampe röhre tsf 진공관 真空管 HAM RADIO audio hi-end hi-fi diy POWER AMPLIFIER roehre Pre-Amplifier Preamp Pri VINTAGE stereo SE Single Ended PP Push-Pull VACUUM TUBES röhren
box 50