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 550
onnected with therectal electrode, which is then carefully introduced with the curved sidedown, pushing up with the electrode any fringe or prolapsed membraneThe current is now turned on by means of the rheostat until ten or fifteenmilli-amperes is reached, and allowed to flow for ten minutes.… … ... Fig. 4,646.—Mcintosh polysine generator. It supplies a slow sine wave ranging from 12 to120 cycles per minute; a rapid sine wave of 1800 per minute; a superimposed wave con-sisting of the 1800 cycle rapid sine wave imposed upon the slow wave; a surging sin-usoidal, somewhat similar in character…
Electrical engineering
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