A dictionary of electrical words, terms and phrases (1896)
Houston, Edwin J. (Edwin James), 1847-1914 · New York, The W.J. Johnston company · leaf 526
ent, and conse-quently moves the distant relay A, but has noeffect on B, since it causes no alternation in thestrength of the current. The author has taken the above almost liter-ally fromCulleys Handbook of Practical Teleg-raphy, to which the reader is referred for a fullerdescription and details… … Fig. 535 Single-Needle Telegraphic Apparatus. signals transmitted are received by observingthe movements of a vertical needle over adial.
Electricity · Electrical engineering
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