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3520

Information - Help 
ID = 11992
       
Country:
Netherlands
Brand: Philips; Eindhoven (tubes international!); Miniwatt
Tube type:  Photocell High vakuum 
  Ca. 1925 up to 1945 rare.
Identical to 3520

Base Europe side contact base P (P8A) (Codex=S) Top contact screw type
Filament No heater
Literature Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature   RL874 July 1942
 
d_philips_3520.jpg
3520: Funkschau_04_1943
Thomas Günzel

 
3520data1.png
3520: own collection
Peter den Boer


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