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4-23

Information - Help 
ID = 78992
       
Country:
Hungary
Brand: Orion; Budapest
Tube type:  Triode, vacuum   Power/Output 
Identical to 4-23

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 0.25 Ampere / Direct / Battery =
Description

Listed as being for audio output use.

 
Information source - - Manufacturers Literature   


Just Qvigstad

Collection of

 
img_20210815_184612.jpg

4-23
 

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