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Ia

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ID = 28923
       
Country:
Austria
Brand: Nowak & Co.; Wien
Tube type:  Triode, vacuum 
Identical to Ia
First year 1927 Saga of the Vacuumtube, Tyne page 463

Filament Vf 5 Volts / If 0.12 Ampere / Direct / Battery =
 
ia_spec.png
Ia: Banneitz, TB der drahtl. Teleph. 1927
Anonymous 15 Collector


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