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8A1_7pin

Information - Help 
ID = 20373
       
Country:
Great Britain (UK)
Brand: Standard Telephones and Cables Ltd. (STC); London, Foots Cray
Tube type:  Vacuum Pentode   RF/IF-Stage 
Identical to 8A1_7pin
Similar Tubes
Other base:
  8A1 ; E446 ; SP4

Base British-7-Pin, old (M7A)
Filament Vf 4 Volts / If 1 Ampere / Indirect / Parallel, (AC/DC)
 

from Just Qvigstad

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