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S25

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ID = 12965
       
Country:
Austria
Brand: Ostar (Gustav Ganz); Wien
Tube type:  Screen-grid Tetrode   Audio Frequency 
Identical to S25
Similar Tubes
Other base:
  B2046
First Source (s)
22.Nov.1935 : Wireless World (The), London (WW, 79)

Base Europe 7-Pin C7A (Hx C, C7, C) 1933 (Codex=Lc) Top contact screw type.
Was used by Radio/TV-reception etc.
Filament Vf 252 Volts / If 0.024 Ampere / Direct
Tube prices 1 Tube prices (visible for members only)
Information source Taschenbuch zum Röhren-Codex 1948/49   
L'ABCDaire des lampes de TSF des jeunes années   p. 31 & 130

ostars25.png S25: Collection TL
Thomas Lebeth


Just Qvigstad
ostardatenblattsxx.png
S25: Datenblatt Ostar
Thomas Lebeth

Collection of

 
s25_01.jpg

 

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