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PH258

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ID = 56190
       
Country:
Netherlands
Brand: Philips; Eindhoven (tubes international!); Miniwatt
Developer: RCA (RCA Victor Co. Inc.); New York (NY) 
Tube type:  Vacuum Pentode   Controlling (mu) 
  Ca. 1925 up to 1945 rare.
Identical to PH258 = PH58 = 58 = 258

Base 6-Pin-Base U6A, old, USA Top contact with a cap.
Was used by Radio/TV-reception etc.
Filament Vf 2.5 Volts / If 1 Ampere / Indirect
Information source - - Manufacturers Literature   1932
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472_6~~2.png PH258: Telefunken Werkstattbuch
Wolfgang Bauer


Just Qvigstad
 

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