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OS

Information - Help 
ID = 28671
       
Country:
Austria
Brand: Nowak & Co.; Wien
Tube type:  Triode, vacuum   Frequency converter 
Identical to OS
First Source (s)
1927 : Saga of the Vacuum Tube, Tyne p.463
15.Mar.1927 : Funk Bastler #13

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914
Was used by Radio/TV-reception etc.
Filament Vf 2.8 Volts / If 0.2 Ampere / Direct / Battery =
Description

Uf=2,8..3,7V; D=15%. Auch O.S. geschrieben.

 
Information source Saga of the Vacuum Tube, Tyne   page 463
Bastelbriefe der Drahtlosen   1927, H.8

b4_base_pins~~709.png OS: Fin Stewart
Fin Stewart


Just Qvigstad
os_spec.png
OS: Banneitz, TB der drahtl. Teleph. 1927
Anonymous 15 Collector

 

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