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201A_Star-Tube

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ID = 30928
       
 
   
Tube type:  Triode, vacuum   Universal 
Identical to 201A_Star-Tube = UV201A

Base UX-Base (4 Pins (2 thick, USA 1924, UX)
Filament Vf 5 Volts / If 0.25 Ampere / Direct / Battery =
Description This mysterious tube type was apparently manufactured in Holland. It could be a patent infringement of GE / RCA by Philips. 
Literature Saga of the Vacuumtube, Tyne   p.428,429
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uvsockel_5~~3.png
201A_Star-Tube: KoBi
Konrad Birkner † 12.08.2014

 
tubedata1923~~17.png
201A_Star-Tube: KoBi
Konrad Birkner † 12.08.2014


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