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PH57

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ID = 51270
       
Country:
Netherlands
Brand: Philips; Eindhoven (tubes international!); Miniwatt
Developer: RCA (RCA Victor Co. Inc.); New York (NY) 
Tube type:  Vacuum Pentode   Audio Frequency 
  Ca. 1925 up to 1945 rare.
Identical to PH57 = PH257 = T-57 = 57

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 / Specified voltage AC/DC
Dimensions (WHD)
incl. pins / tip
x 119 x 42 mm / x 4.69 x 1.65 inch
Weight 42 g / 1.48 oz
Information source - - Manufacturers Literature   1933
-- Collector info (Sammler)   

472_4~~1.png PH57: Telefunken Werkstattbuch
Wolfgang Bauer


Just Qvigstad
 

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