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A4090

Information - Help 
ID = 13713
       
Country:
Germany
Brand: Valvo GmbH, Radioröhrenfabrik; Hamburg
Tube type:  Triode, vacuum 
Identical to A4090 = E424N = REN904

Base Europe 5-Pin , B5 (Eu O, F, O5A) 1928 (Codex=F)
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 1 Ampere / Indirect / Specified voltage AC/DC
Information source Taschenbuch zum Röhren-Codex 1948/49   

7_8.png A4090: Telefunken Werkstattbuch
Wolfgang Bauer


Just Qvigstad
a4090_spec.png
A4090: RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector

 
a4090.jpg

A4090
 

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