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PH231

Information - Help 
ID = 51279
       
Country:
Netherlands
Brand: Philips; Eindhoven (tubes international!); Miniwatt
Developer: RCA (RCA Victor Co. Inc.); New York (NY) 
Tube type:  Triode, vacuum   Power/Output 
  Ca. 1925 up to 1945 rare.
Identical to PH231 = UX231 = 31

Base UX-Base (4 Pins (2 thick, USA 1924, UX)
Was used by Radio/TV-reception etc.
Filament Vf 2 Volts / If 0.13 Ampere / Direct / Battery =
Dimensions (WHD)
incl. pins / tip
x 100 x 34 mm / x 3.94 x 1.34 inch
Weight 38 g / 1.34 oz
Information source - - Manufacturers Literature   1933
-- Collector info (Sammler)   

171_13~~1.png PH231: Telefunken Werkstattbuch
Wolfgang Bauer


Just Qvigstad
 

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