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Ultra-Mikro

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ID = 86818
       
Country:
Czechoslovakia
Brand: Mars (tubes), Radioelektra; Praha
Tube type:  Triode, vacuum 
Identical to Ultra-Mikro = Ultra-Micro

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914
Was used by Radio/TV-reception etc.
Filament Vf 3.5 Volts / If 0.4 Ampere / Direct / Battery =

b4_base_pins~~809.png Ultra-Mikro: Fin Stewart
Fin Stewart


Just Qvigstad
 

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