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 137
th a two way circuit breaker. That is to say, it is equivalent to a single pole two way switch, or akey with an insulated contact at each end. 2,230 HAWKINS ELECTRICITY Ques. What is the difference between a repeater anda transmitter? Ans. A repeater has a one way contact breaker and a trans-mitter… … INSULATEDSPRING POST CONTACT STANDARD- *«^- MAGNET TERMINALS—-AT OTHER END
Electrical engineering
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