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U920_Ostar

Information - Help 
ID = 604
       
Country:
Austria
Brand: Ostar (Gustav Ganz); Wien
Developer: Ostar (Gustav Ganz); Wien 
Tube type:  Triode, vacuum   Universal 
Identical to U920_Ostar
First Source (s)
Sep.1931 : Funk Bastler 1931 Heft 41

Base Europe 5-Pin , B5 (Eu O, F, O5A) 1928 (Codex=F)
Filament Vf 225 Volts / If 0.03 Ampere / Indirect / Series, AC/DC
Description

This tube was available for heater voltages of 115, 155 or 230 volts, or at customer's order for any voltage from 20 to 250 volts.

 
Text in other languages (may differ)
Literature Taschenbuch zum Röhren-Codex 1948/49   
Saga of the Vacuum Tube, Tyne
 
u920_01.jpg
U920_Ostar: Collection TL
Thomas Lebeth

 
7_17.png
U920_Ostar: Telefunken Werkstattbuch
Wolfgang Bauer

 
ostaru920_kl_01.png
U920_Ostar: Ostar Werbeschrift
Thomas Lebeth



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