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PH55

Information - Help 
ID = 51267
       
Country:
Netherlands
Brand: Philips; Eindhoven (tubes international!); Miniwatt
Developer: RCA (RCA Victor Co. Inc.); New York (NY) 
Tube type:  Double Diode-Triode 
  Ca. 1925 up to 1945 rare.
Identical to PH55 = 55

Base 6-Pin-Base U6A, old, USA Top contact with a cap.
Filament Vf 2.5 Volts / If 1 Ampere / Indirect
Information source - - Manufacturers Literature   1933
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PH55: Telefunken Werkstattbuch
Wolfgang Bauer

 

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