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PR21_Pope

Information - Help 
ID = 51051
       
Country:
Netherlands
Brand: Pope's Draad- en Lampenfabrieken; Venlo
Developer: Philips; Eindhoven (tubes international!); Miniwatt 
Tube type:  Triode, vacuum   Universal 
  <1925 very rare. ***
Identical to PR21_Pope = E_Philips = PR21_Condor
Similar Tubes
Other base:
  PR21_UV-Condor

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914
Filament Vf 4 Volts / If 0.7 Ampere / Direct / Battery =
Information source - - Manufacturers Literature   1925
 
1_7~~10.png
PR21_Pope: Telefunken Werkstattbuch
Wolfgang Bauer

 

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