A manual of practical medical electricity : the Röntgen rays and Finsen light (1902)
Turner, Dawson · New York : William Wood & Company · leaf 166
Fig. 88.—Voliolinis Baitery. Electricity of High Potential and of Great Frequencyof Alternation. The electrical phenomena exhibited by Tesla and ElihuThompson are, from their physiological effects, not with-out much medical interest. These will be referred to High Potential Electricity 143 farther… … o tion coil are that the alternations of his current are in-conceivably rapid, and the E. M. F. exceedingly high.Thus the alternations produced by a good induction coilmaybe about 200 per second, and the E. M. F. from 500 144 A Manual of Practical Medical Electricity to 20,000 volts ; while the…
