ecc 83 Brimar Mullard 12ax7 ecc83 17mm long black plate military röhre D getter

ecc83 Brimar RED INK  tube 12ax7  OLDEST PRODUCTION RARE

DARK GREY PLATE RUGGED RUGGEDIZED ANODE

Ribbed plate
long 17mm
D getter welded SLANTED 45 DEGREES
röhrenverstärker
preamp valve pre ampifier phono pre input sriver stage audio valve

Selected Military specification code 4K5/573 ACID CODE on glass

1 piece = 1 tube = one tube = one vintage vacuum tube = 1 valve

17mm Plate
long ribbed  plate dark grey anode

tested Strong on TV7D/U military tube tester calibrated
Test results 52/58 ( good at 32/32 ) on tube tester calibrated TV7D/U

STRONG TUBE TESTED LONG LIFE PERFORMANCES

ECC83 Double Triode  Audio Frequency High Gain
ECC83 = 12AX7 = B339 = 95-127-01 = 6L13 = CM1 = ECC83S
Similar Tubes  Normally replaceable-slightly different:   0AX7 ; 12AX7A ; CV492 ; E2164
Other class quality (otherwise equal):   7025 ; CV4004 ; E83CC ; M8137
Other characteristic (electr. data):   12AY7 ; 6N4_China
Other base and other heater:   6EU7 ; ECC808
Multiple differences or of other kind:   5751 ; 7729
Successor Tubes 1963   ECC808   5751WA
Base Noval B9A
Filament Heater Vf 12.6 Volts / If 0.15 Ampere / Indirect / Parallel / series 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 69