Russian dumper diode 6D22S. 6D22S is similar to EY500. Svetlana factory.

Filament voltage: 5,7

Heater current: 1.75 A

Anode Current average: 300 mA

Anode pulse (Ua = 50 V): 1000 mAh

Reverse voltage anode pulse: 6 kV

Voltage cathode-heater at a negative potential to the heater and a pulse duration of less than 15 ms: 6.5 kV

Constant voltage cathode-heater at a negative potential to the heater: 900 V

Constant voltage cathode-heater with a positive potential on the heater: 100 V

The power dissipated by the anode: 8 W

Capacity of the anode-cathode: 10.5 pF

Capacitance cathode-heater: 5 pF