FIELD: electric spark alloying of surfaces of mechanisms. SUBSTANCE: technological electric pulse generator includes power source 1; accumulation capacitor 2 with charging thyristor switch 3 having in its collector circuit limiting resistor 4; discharging thyristor switch 6; control units 5, 7 for controlling charging and discharging thyristor switches 3, 6; unit 12 for controlling tool-electrode 11. Unit 7 for controlling discharging thyristor switch 6 includes transistor 8. Base of said transistor through limiting resistor 9 is connected with tool-electrode 11, collector 8 through other limiting resistor 10 is connected with gate of discharging thyristor switch 6 and emitter is connected with power source 1. EFFECT: simplified generator circuit, enhanced efficiency of using accumulation capacitor. 1 dwg
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