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F704_UX4

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ID = 23071
       
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 F704_UX4 = EX650 = UX250 = PH250
Similar Tubes
Normally replaceable-slightly different:
  A750 ; CV2533 ; CX350 ; P25/450 ; VT-50
Other base:
  E165A ; E165B ; F704 ; W306_Marathon ; W704
First Source (s)
Aug.1930 : Philips Bulletin 1164, tube equivalents

Base UX-Base (4 Pins (2 thick, USA 1924, UX)
Was used by Radio/TV-reception etc.
Filament Vf 7.5 Volts / If 1.25 Ampere / Direct / Specified voltage AC/DC
Description

This tube is the equivalent of the RCA UX250.

 
Information source - - Manufacturers Literature   Philips Australia RIF26
-- Collector info (Sammler)
Röhren-Vademecum; P.H. Brans; Antwerpen

f704~~1.gif
F704_UX4: ficha de valvulas
Getulio Jimenez-Gomez

ux4_11.png F704_UX4
Peter den Boer


Just Qvigstad
f704c603f203data.png
F704_UX4: own collection
Peter den Boer

Collection of

 
philipsf704.jpg

 

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