Electrical engineer's pocket-book: a hand-book of useful data for electricians and electrical engineers (1901)
Foster, Horatio A. (Horatio Alvah), 1858-1913 · New York, D. Van Nostrand co.; London, E.& F.N. Spon, ltd. · leaf 679
tions correspond also, the receiver hook, H, at Stations 1and 2 being arranged to throw in and out of circuit the talking apparatusand the signaling apparatus, while the hook at Station 3 merely short-circuits the signaling apparatus or the receiver circuit, according to itsposition. This… … Fig. 41. Series Party System Using Induction Coils and SignalingMagnetos. A simple system installed where there was considerable noise, dirt, andvibration, is represented diagrammatically by Fig. 42. Here, there are threeline wires, a, b, and c, the line c forming a common return for both…
Electrical engineering
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