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Miniwatt

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ID = 32121
       
Country:
Austria
Brand: Helikon, Helikonwerk, Ing. Richard Martinek; Wien
Tube type:  Triode, vacuum 
Identical to Miniwatt

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914
Was used by Radio/TV-reception etc.
Filament Vf 3.5 Volts / If 0.073 Ampere / Direct
Information source -- Original-techn. papers.   ÖRA, Nov. 1925, S 251

b4_base_pins~~643.png Miniwatt: Fin Stewart
Fin Stewart


Just Qvigstad
helikonminiwattkennliniera1125.png
Miniwatt: ÖRA 11-1925
Thomas Lebeth

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helikon_miniwatt_bild1..jpg

Miniwatt
 

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