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ID = 25889
Great Britain (UK)
Brand: Mullard Radio Valve Co. Ltd.;
Tube type:  Double Triode   Universal 
Identical to M8136 = CV4003 = E82CC = 6189
Similar Tubes
Other class quality (otherwise equal):
  12AU7 ; 13D8 ; CV491 ; ECC82

Base Noval, 9 pin miniature (USA pico-9) B9A
Filament Vf 12.6 Volts / If 0.15 Ampere / Indirect
Description Tube Equivalents for the M8136, a Special Quality tube for critical application: CV4003, 6189, E82CC; while the ECC82 = 12AU7 is close to it, but of lesser quality for such application. 
Text in other languages (may differ)
Information source Essential Characteristics, GE 1973   

m8136_so.png M8136: ARRL Handbook 1972
Anonymous 10 Collector

Just Qvigstad
M8136: Mullard Handbook
Roy Johnson

More ...
Usage in Models 1= 1966

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):1

Collection of



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