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ID = 11923
Brand: Philips; Eindhoven (tubes international!); Miniwatt
Developer: Philips; Eindhoven (tubes international!); Miniwatt 
Tube type:  Transmitting Tube, Pentode, air cooled 
  Ca. 1925 up to 1945 rare.
Identical to PB2/500

Base SPECIAL TUBEBASE in general (Codex=sp)
Filament Vf 12 Volts / If 7.3 Ampere
Dimensions (WHD)
incl. pins / tip
86 x 271 x mm / 3.39 x 10.67 x inch
Information source Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature   

pb2500_sock.png PB2/500: Valvo,Senderöhren, 1983
Anonymous 15 Collector

PB2/500: own collection
Peter den Boer

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