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 142
verser. THE TELEGRAPH 2,235 Ques. What is the difference between a pole changerand a pole changing transmitter? Ans. The construction of a pole changer is such that thecircuit is momentarily broken at each reversal, whereas in thepole changing transmitter, continuity of circuit is preserved. When… … Fig. 3,083.—Bunnell, new type Western Union model pole changing transmitter, or circuitcontinuity preserving reverser, suitable for use with battery currents. short circuit existing at each reversal, which, on account of the extremelysmall internal resistance of the dynamo as compared to the…
Electrical engineering
Internet Archive · Brigham Young University · Public Domain Mark 1.0. Free to use for anything.
