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F203_B4

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ID = 55943
       
Country:
Netherlands
Brand: Philips; Eindhoven (tubes international!); Miniwatt
Developer: Philips; Eindhoven (tubes international!); Miniwatt 
Tube type:  Triode, vacuum   Power/Output 
  Ca. 1925 up to 1945 rare.
Identical to F203_B4
Similar Tubes
Other base:
  F203

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914
Was used by Radio/TV-reception etc.
Filament Vf 2.5 Volts / If 1.5 Ampere / Direct / Specified voltage AC/DC
Information source - - Manufacturers Literature   

3-b4_1.png F203_B4
Peter den Boer


Just Qvigstad
f203data.png
F203_B4: own collection
Peter den Boer

 

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