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MP4

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ID = 12813
       
Country:
Great Britain (UK)
Brand: 362 Valve Co., Ltd. (The ...)
Tube type:  Double Tetrode 
Identical to MP4

Base Europe 7-Pin C7A (Hx C, C7, C) 1933 (Codex=Lh)
Filament Vf 4 Volts / If 1 Ampere / Indirect
Information source Taschenbuch zum Röhren-Codex 1948/49   

s_417_g.gif MP4: W.Sprick: Austausch-Röhren-Lexikon 1947
Günther Stabe † 19.8.20


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