My Russian not this good tonight, this below is the 5C9S datasheet that Vladi59 kindly send me the link:This is the link to the specs. sheet you gave earlier: (no DHT)
''GSTube.com''. Tubes, sockets etc. Parameters and characteristics 5z9c
5C9S Rectifier Svetlana tubes
Type double-anode rectifier
Application alternative current rectification
Cathode type oxide, indirect heating
Envelope glass
Mass,g 95
Filament voltage,V 5
Filament current,A 2,7-3,3
Anode voltage,V 75
Anode current,A 0,18
Anode power,W 12
Socket type rsh6
Max.reverse anode voltage,kV 1,7
5C9S 5Z9C DATASHEET
Max. supply voltage (per plate): 500 VAC
Max. output current: 200 mA
Max. peak output current: 3 A
Max peak reverse voltage: 1,700 V
Max plate dissipation: 12 W
Heater 5 V 3 A