. Electricity : its medical and surgical applications, including radiotherapy and phototherapy . »-(. Piffards high frequency spiral, for use with static machine in producing the DArsonval current. as well as by the action of the liberated ozone, and the possible actionon the cells by the current itself (p. 140). To obtain this from a highfrequency apparatus either the hyperstatic transformer, resonator, orsecondary of the Tesla coil must be used. While general constitutionaleffects (p. 135) may be obtained from the primary coil of the Teslaapparatus, the current from the DArsonval coil (p. 21
. Electricity : its medical and surgical applications, including radiotherapy and phototherapy . »-(. Piffards high frequency spiral, for use with static machine in producing the DArsonval current. as well as by the action of the liberated ozone, and the possible actionon the cells by the current itself (p. 140). To obtain this from a highfrequency apparatus either the hyperstatic transformer, resonator, orsecondary of the Tesla coil must be used. While general constitutionaleffects (p. 135) may be obtained from the primary coil of the Teslaapparatus, the current from the DArsonval coil (p. 219) is of specialvalue for this purpose. Various means may be employed to obtain the high tension currentnecessary to generate high frequency currents. Thus, the static machinemay be used, the Leyden jars being put in place, and the ends of thesolenoid attached to the outer coating. On the negative side the outer 1 The static induced and wave currents are practically high frequency currents (pp. 101, ,and 258). 214 RULES FOR USING STATIC AND HIGH FREQUENCY CURRENTS coating may also be grounded
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