5C3S double anode tube.

Application alternative current rectification

Cathode type oxide,direct heating
Envelope glass
Mass,g 72
Filament voltage,V 5
Filament current,A 2,7-3,3
Anode voltage,V 75
Anode current,A 0,225
Socket type rsh5-1
Max.reverse anode voltage,kV 1,7