FIELD: forced liquid cooling systems for high-voltage vacuum-tube and gas-discharge devices. SUBSTANCE: cooling system has high-voltage electrode 2 in the form of filament of rod arranged on axis of cavities 7 and 8 isolated from each other by dielectric wall 4 and filled with insulating liquid, such as transformer oil, that functions as coolant. It also has solid insulator and insulator 5, high-voltage electrode 3 and electrode 6 that may function as heat-loaded element. EFFECT: improved heat transfer intensity. 3 cl, 6 dwg
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