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N389

Information - Help 
ID = 73704
       
Country:
Great Britain (UK)
Brand: Marconi-Osram - (Valves/Tubes); GB
Tube type:  Beam Power Tube   Power/Output 
Identical to N389
Similar Tubes
Normally replaceable-slightly different:
  30P4 ; 30P4M
Other characteristic (electr. data):
  PL36

Base Octal (Int.Octal, IO) K8A, USA 1935 Top contact with a cap.
Filament Vf 25 Volts / If 0.3 Ampere / Indirect / Specified current AC/DC ~ = (Series working)
Description

Line Output Valve for ac/dc TV receivers

 
Text in other languages (may differ)
Information source Wireless World (The), London (WW, 79)   


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