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ID = 10703
Brand: Ultron (tubes)
Tube type:  Vacuum Pentode   Power/Output 
Identical to 20C4_Ultron = B2043_B6

Base Europe 7-Pin (C7A, C, 1933) (Codex=Ldo)
Was used by Radio/TV-reception etc.
Filament Vf 20 Volts / If 0.18 Ampere / Indirect / Series, DC /
Literature Taschenbuch zum Röhren-Codex 1948/49   


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