Europe side contact, small, P5, Ct5,1933 (Codex=Gd)
Filament
If: 0.65 Ampere /
Vf 4 Volts /
Literature
Taschenbuch zum Röhren-Codex 1948/49
Telefunken Werkstattbuch
Wolfgang Bauer
No further Information
for
4A21
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