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E200/300

Information - Help 
ID = 12703
       
Country:
France
Brand: Celsior (tubes), Radio-Celsior; Paris
Tube type:  Screen-grid Tetrode   RF/IF-Stage 
Identical to E200/300
First year 1930 Saga of the Vacuum Tube, Tyne page 410

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Er)
Filament Vf 4 Volts / If 0.1 Ampere
Information source Taschenbuch zum Röhren-Codex 1948/49   
 

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