an apparatus produces contractions in skeletal muscles of a target to impede locomotion by an animal of human target . the apparatus is used with at least one electrode for conducting a current through the target . the apparatus may be implemented as an electronic disabling device . the apparatus includes two circuits . the first circuit includes a transformer and a first capacitor . the second capacitor and a secondary winding of the transformer . the second circuit is a series circuit with the electrode . in operation with the electrode , the transformer impresses a voltage on the electrode of greater magnitude than the first voltage , and the current is responsive to the first capacitor and discharge of the second capacitor .