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ID = 50695
United States of America (USA)
Brand: General Electric Co. (GE); Bridgeport CT, Syracuse NY
Developer: General Electric Co. (GE); Bridgeport CT, Syracuse NY 
Tube type:  Half-Wave Rectifier, inert gas filled   Power-supply 
Identical to 217283 = 5B21 = 1164

Base Edison giant, E40 = 40 mm-Goliat Top contact with a cap
Was used by Industrial
Filament Vf 2.5 Volts / If 25 Ampere / Direct

Argon-filled rectifier, mainly intended for use in battery chargers. 225V PIV, 60V DC, 15A average.
'Tungar' stays for TUNgsten, referred to the filament, and ARgon, the filling gas.

Information source Taschenbuch zum Röhren-Codex 1948/49   
Tube Lore (I)   
Aldo Patriarca

217283: Aus eigenen Unterlagen
Rudolf Osterkamp

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