A dictionary of electrical words, terms and phrases (1898)
Houston, Edwin J. (Edwin James), 1847-1914 · New York, The W. J. Johnston company · leaf 523
other B, gives signalson changes in current strength, but none onchanges in direction. They are, therefore, in-dependent of each other, and operate soundersthat are under the independent control of twodistinct receiving operators. A table, divided into four sections, is providedwith places for two… … i CORRECTINGV RE^AY HE.V.ERSING KE / E BATTERY 1. BATTERY 2, Fig. S34- Quadruplex Telegraphy, Differential Method. Referring to Fig. 534 the reversing key on theA side is merely indicated so as to avoid con-fusion by too great detail; as is also the case withthe increment key or the strengthening…
Electricity · Electrical engineering
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