radiomuseum.org

 
Please click your language flag. Bitte Sprachflagge klicken.

F704

Information - Help 
ID = 15845
       
Country:
Netherlands
Brand: Philips; Eindhoven (tubes international!); Miniwatt
Tube type:  Triode, vacuum   Power/Output 
Identical to F704
Similar Tubes
Normally replaceable-slightly different:
  25-450 ; P20 ; PH250 ; T730 ; W306_Marathon ; W704
Other base:
  F704_UX4
Multiple differences or of other kind:
  KI25/5
First year 1926 Tube leaflet collection E.Erb Analysis by original leaflets

Base Europe 4-Pin (A, 4A, B4, since 1914) (Codex=Eo)
Filament Vf 7.5 Volts / If 1.2 Ampere
Description Va <450V; Pa <25W gm 2.1mA/V.
Designed as a modulator tube. 
Dimensions (WHD)
incl. pins / tip
58 x 152 x mm / 2.28 x 5.98 x inch
Literature Taschenbuch zum Röhren-Codex 1948/49   
  f704.gif
  F704: ficha de valvulas
Getulio Jimenez-Gomez
 
f704_philips.jpg
F704: g.h.
Gerhard Heigl

 
f704_so.png
F704: rtt
Michael Schlör

 
daten_f704_philips.png
F704: Philips Verstärkerröhren
Gerhard Heigl



You reach this tube or valve page from a search after clicking the "tubes" tab or by clicking a tube on a radio model page. You will find thousands of tubes or valves with interesting links. You even can look up radio models with a certain tube line up. [rmxtube-en]
  
rmXorg