The electric device for producing successive positive and negative electric charges includes a thyristor-based electrical pulse generator for providing alternating positive and negative pulses with relatively small currents. The potential alternates between positive and negative charge current, and the small current is applied, in the form of sparks, to a body under treatment. A cup-shaped electrode is mounted in the distal end of a handle for application to the body. The treatment device is carried in a case for portability.