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- · New York, T. Audel · leaf 206
ding circuit per-mits adjusting the compounding of the machireto the circuit on which it is to wcrk. onceby varying the resistance the percentage of the total current passing through the corn-er winding can be changed. It will be seen by tracing the path of the current fortach direction in the… … Fig. 1.45S.—Connecticut magneto: view showing permanconsists of three permanent U shape magnets, between tarmature. The latter is geared to a hand crank in sudesired speed without too rapid turning of the crank,generate current for operation of telephone call bells. oles of which is a shuttle…
Electrical engineering
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