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A2002

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ID = 50862
       
Country:
Netherlands
Brand: Radio-Record - Röhrenmarke; Holland
Developer: Radio-Record - Röhrenmarke; Holland 
Tube type:  Screen-grid Tetrode   RF/IF-Stage 
  Ca. 1925 up to 1945 rare.
Identical to A2002
Similar Tubes
Normally replaceable-slightly different:
  A242

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 Top contact screw type.
Was used by Radio/TV-reception etc.
Filament Vf 2 Volts / If 0.12 Ampere / Direct / Battery =
Description HF amplification. 
 
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A2002
Peter den Boer

 
a2002data.png
A2002: own collection
Peter den Boer


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