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ID = 25886
Great Britain (UK)
Brand: Common type Great Britain tube/semicond.
Tube type:  Double Triode   Universal 
Identical to CV4003 = M8136 = 6189 = 12AU7WA = 6189W
Similar Tubes
Normally replaceable-slightly different:
Other class quality (otherwise equal):
  12AU7 ; 13D8 ; CV491 ; ECC82

Base Noval, 9 pin miniature (USA pico-9) B9A
Filament Vf 6.3 Volts / If 0.3 Ampere / Indirect / Specified voltage AC/DC
Description Special Quality tube for critical applications.
Ruggedised version of the CV491, electrically interchangeable. 
Information source - - Manufacturers Literature   
-- Original-techn. papers.   

cv4003_so.png CV4003: ARRL Handbook 1972
Anonymous 10 Collector

Just Qvigstad
CV4003: Manufacturer's Literature
Emilio Ciardiello

More ...
Usage in Models 1= 1958 ; 1= 1970?

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):2

Collection of

Collection of a member from FIN


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