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UD4

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ID = 6699
       
Country:
Austria
Brand: Novis; Wien (Tubes)
Tube type:  Double Diode 
Identical to UD4

Base Europe side contact, small P5 (Au V, 5E) (Codex=Gd)
Filament Vf 4 Volts / If 0.65 Ampere
Information source Taschenbuch zum Röhren-Codex 1948/49   


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