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 170
f opening and closing itis repeated with great rapidity so long as the switch W remainsclosed. The cycle of actions may be briefly stated as follows: 150 HAWKINS ELECTRICITY 1. A primary current flows and magnetizes the core; 2. The magnetized core attracts the vibrator which breaks theprimary… … y HV—v—vr 5L Fig. 145.—The Splitdorf master vibrator coil. As shown in the illustration the severalunit coils are indicated by the figures 1, 2, 3, and 4. A fifth unit V at the left containsthe master vibrator. The primary wires P connect with the timer and the secondarywires S with the plugs. B B…
Electrical engineering
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