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ID = 10871
Great Britain (UK)
Brand: Common type Great Britain tube/semicond.
Tube type:  Vacuum Pentode   Power/Output 
Identical to 4307A = CV1717
Similar Tubes
Normally replaceable-slightly different:
  CV1080 ; SY4307A
Other base and data slightly different:
Successor Tubes VT80_GB  

Base British-7-Pin, old (M7A) (Codex=Ny)
Filament Vf 5.5 Volts / If 1 Ampere
Information source Taschenbuch zum Röhren-Codex 1948/49   

4307a_sock.png 4307A: Tabu Röhren-Codex, 1948
Anonymous 15 Collector

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