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UD2N

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ID = 59007
       
Country:
Austria
Brand: Triotron (tubes) = Brand of Schrack, Austria
Developer: Triotron (tubes) = Brand of Schrack, Austria 
Tube type:  Triode, vacuum   Power/Output 
  Ca. 1925 up to 1945 rare.
Identical to UD2N

Was used by Radio/TV-reception etc.
Filament Vf 2 Volts / If 0.22 Ampere / Direct / Battery =
Information source - - Manufacturers Literature   1935

ud2ndata.png
UD2N: own collection
Peter den Boer

 

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