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 103
y to a certain maximum,after which discharges will take place through this gap. In construction the spark dis-charges over this gap are visible through a small glass window conveniently located. GAS ENGINE IGNITION 2,757 The first mentioned type constitutes the only real high tensionmagnetos. Ques.… … Fig. 3,960.—Sumter low tension oscillating magneto. In this type the armature does not re-volve continuously but oscillates back and forth through an angle of about 90°. Ans. The essential features are a low tension armaturearranged to revolve in a permanent magnet field and providedwith…
Electrical engineering
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