Hawkins electrical guide ... : questions, answers & illustrations : a progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications ; a practical treatise (1914)
Hawkins, N. (Nehemiah), 1833-1928 · New York : T. Audel & Co. · leaf 534
equency and wave form directly to the patient, and for supply-ing the high frequency current required form the operation ofvacuum tubes. All medical induction coils are of practically similar con-struction, consisting of a primary and secondary coil in mutualinductive relation to each other, a core… … or Sa6 Fig. 4,609.—Diagram showing connections of a medical induction coil. Pi and P2, are the ter-minals of the primary circuit (including vibrator). Si and S2, those of the secondary coil.The terminal P3, is connected to the vibrating spring or interrupter A. In operation,when the vibrator spring…
Electrical engineering
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