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4408

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ID = 12475
       
Country:
Great Britain (UK)
Brand: Common type Great Britain tube/semicond.
Tube type:  Screen-grid Tetrode 
Identical to 4408

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Er)
Filament Vf 4 Volts / If 1 Ampere
Information source Taschenbuch zum Röhren-Codex 1948/49   

nr37_2.png 4408: Manufacturer's Literature
Emilio Ciardiello


Just Qvigstad
 

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