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HP221

Information - Help 
ID = 10097
       
Country:
Hungary
Brand: Tungsram; Budapest (see also British T.)
Tube type:  Vacuum Pentode   Controlling (mu) 
Identical to HP221

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


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