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TP4_Vatea

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ID = 28819
       
 
   
Tube type:  Triode, vacuum   Universal 
Identical to TP4_Vatea
First year 1927 Saga of the Vacuumtube, Tyne page 467
First Source (s)
1925 : -- Original-techn. papers.

Base Europe 4-Pin (A, 4A, B4, since 1914)
Filament Vf 1.8 Volts / If 0.18 Ampere / Direct / Battery =
 
tp4_vatea_spec.png
TP4_Vatea: Banneitz, TB der drahtl. Teleph. 1927
Anonymous 15 Collector


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