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RD4

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ID = 14673
       
Country:
Austria
Brand: Triotron (tubes) = Brand of Schrack, Austria
Tube type:  Triode, vacuum   Universal 
Identical to RD4

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Eo)
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 0.06 Ampere / Direct / Battery =
Information source Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature   1931 tube data booklet

sockel_4stift_triode_2.png RD4: g.h.
Gerhard Heigl

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Just Qvigstad
daten_rd4_triotron.png
RD4: g.h.
Gerhard Heigl

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Collection of

 
rd4.jpg

 

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