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4A12_Ultron

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ID = 9287
       
Country:
Belgium
Brand: Ultron (tubes)
Tube type:  OCTODE   Frequency converter   Controlling (mu) 
Identical to 4A12_Ultron = AK1

Base Europe 7-Pin C7A (Hx C, C7, C) 1933 (Codex=Leo)
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 0.65 Ampere / Indirect / Specified voltage AC/DC
Information source Taschenbuch zum Röhren-Codex 1948/49   


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