A dictionary of electrical words, terms and phrases (1896)
Houston, Edwin J. (Edwin James), 1847-1914 · New York, The W.J. Johnston company · leaf 63
Fig. S4> Multiple Switckboa 1 dfo In Multiple Switchboards for the Elec ■.■or Disi v Szo ches, spring-jack conl i< ts are connected with the terminals of different circuits Boa.] ft [Bod. and plug swilches with the dynamo terminals.By these means, any dynamo can be connectedwith any circuit,…
Electricity · Electrical engineering
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