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ID = 61754
Great Britain (UK)
Brand: GEC, General Electric Co.; London
Tube type:  Vacuum Pentode   RF/IF-Stage 
Identical to QA2403
Similar Tubes
Other class quality (otherwise equal):
  EF91 ; Z77

Filament Vf 6.3 Volts / If 0.3 Ampere / Indirect / Specified voltage AND current AC/DC

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