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 215
theoperation is repeated. The faster this armature makes and breaksthe circuit the greater will be the spark frequency. This is not to beconfused with the high frequency of the oscillating circuit. 2,306 HAWKINS ELECTRICITY Ques. How is the spark gap connected? Ans. Directly across the secondary… … Fig. 3,154.—Short wave condenser. It consists of glass plates which form the dialectricbetween tin foil sheets, and is used when the auxiliary set is operated on a three hundredmeter wave length. The switch which short circuits it must then be turned off. Ans. In series between the lower anchor gap…
Electrical engineering
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