An electronic scalpel of the type comprising: - a manipulator (41) for coagulating organic tissues and at least an electrode to close the electrical circuit connected thereto; - a rectifying circuit (20) which is fed by the current voltage supplying a voltage (201) to a radiofrequency circuit; - a radio frequency circuit (30) comprising at least an electronic switch (305) fed by said voltage (201) and controlled by a pilot circuit (306) characterized in that said radio frequency circuit has as output a resulting wave ( 301) formed by the combination of a generally square carrier wave (304) and a modulation wave; the resulting wave circulating in a broadband resonant circuit on the frequency of said carrier wave.
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