FIELD: medical engineering. SUBSTANCE: apparatus has master oscillator connected to modulator, modulating oscillator, power amplifier, radiator, controlled signal sensor, voltage regulator incorporating error signal amplifier with reference-voltage supply and adjusting member, and feedback signal shaper. The latter has rectifier connected to noninverting amplifier, capacitor, and resistor forming RC circuit through storage capacitor and to isolating diode. EFFECT: improved effectiveness of treatment in continuous and intermittent modes of ultrasonic radiation. 1 cl, 2 dwg
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