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NU20

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ID = 8019
       
Country:
United States of America (USA)
Brand: National Union Radio Corp.; Orange (NJ)
Tube type:  Photocell High vakuum 
Identical to NU20

Base (Codex=Vy)
Filament Vf 0 Volts / If 0 Ampere
Information source Taschenbuch zum Röhren-Codex 1948/49   

 

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