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2B12

Information - Help 
ID = 13221
       
Country:
Belgium
Brand: Ultron (tubes)
Tube type:  Double Triode 
Identical to 2B12

Base Europe 7-Pin C7A (Hx C, C7, C) 1933 (Codex=Ls)
Filament Vf 2 Volts / If 0.2 Ampere
Information source Taschenbuch zum Röhren-Codex 1948/49   


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