High frequency apparatus, design, construction and practical application; a practical treatise for electrical engineers, electricans, physicians, students and experimenters (1920)
Curtis, Thomas Stanley · New York, Norman W. Henley publishing company · leaf 134
ns of coarse wire to pro-duce the hot spark for fulguration, while the other coil iswound with a greater number of turns of finer wire to pro-duce the higher voltage necessary for vacuum tube work. For diathermy where an exceedingly heavy current ismade to pass through a localized area of the body,… … Fig. 63.—Portable kicking coil outfit that will operate on either direct or alternating current outfit of the kicking coil type that sells for $75.00. This outfit weighs but thirty pounds, will operate on either direct or alternating current circuits, and combines all of j the high frequency…
Electric apparatus and appliances
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