. Practical points in the use of X-ray and high-frequency currents . Fig. 22.—Shows a cylinder having a continuous winding on it, the lowerend being connected to the outer coating of one Leyden jar. Arepresents a sliding contact on a post, which is connected with theouter coating of the other Leyden jar. As this contact is moved upor down, the spark from the top of the resonator is varied, and foreach spark gap length between A and A the sliding contact canbe varied so as to get a maximum spark from the top of the resonator. Electrodes. These are usually hollow glasstubes exhausted to a low va
. Practical points in the use of X-ray and high-frequency currents . Fig. 22.—Shows a cylinder having a continuous winding on it, the lowerend being connected to the outer coating of one Leyden jar. Arepresents a sliding contact on a post, which is connected with theouter coating of the other Leyden jar. As this contact is moved upor down, the spark from the top of the resonator is varied, and foreach spark gap length between A and A the sliding contact canbe varied so as to get a maximum spark from the top of the resonator. Electrodes. These are usually hollow glasstubes exhausted to a low vacuum, and may beblown in any shape desired to fit the hollowcavities, such as the nares, the throat, the vagina,the rectum, or with a flat surface to be applied 58 X-Ray and High-Frequency Currents to the surface of the body. They are fixed in aninsulated handle, and a wire from one terminal isattached, the other terminal being connected tothe patient by means of a wire and a brass han-dle, usually in the form of a ball or hollowcylinder. iff. } Figs. 23 and 24.—Illustrate the ordinary plain vacuum electrode. In the use of high-frequency electrical cur-rents, our efforts are continually directed to theproduction of a current of high voltage anddiminished amperage. The apparatus can beattached both to the coil and to the staticmachine. (See Figs. 23 to 27 inclusive, Elec-trodes, various kinds.) We will now trace our current from our coilor static machine, through our apparatus, to our High-Frequency Apparatus 59 patient. Attaching the wires from the terminalsof our static machine or coil, we carry these tothe condensers. These are charged and dis-charged, the quantity of current and rapidity ofdischarge depending upon the amount of foil in CE
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