Ducretet Tesla coil - Drawing. Public domain image.
Резюме
Small medical Tesla coil used for electrotherapy around the turn of the century, manufactured by the Eugene Ducretet firm of Paris. The coil itself (T) is immersed in a tank of oil to prevent current leakage due to corona discharge. It is connected to a Leyden jar (L, right) to make a tuned circuit, and a spark gap (e), powered by a Ruhmkorff coil (not shown)
One of the high voltage terminals (E) is attached through a wire to a pointed electrode on an insulated wand which produces a brush discharge which is applied to parts of the patients' body to treat various ailments. The other high voltage terminal is attached to a ground electrode which the patient holds.
Nikola Tesla (1856–1943) Serbian American inventor and engineer who discovered and patented the rotating magnetic field, the basis of most alternating-current machinery. He also developed the three-phase system of electric power transmission. He immigrated to the United States in 1884 and sold the patent rights to his system of alternating-current dynamos, transformers, and motors to George Westinghouse.
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