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 650
next. The ground plates may be dispensed withif a return wire from the next station is used, thus forming a metallic cir-cuit. This method of connecting Morse apparatus is used mostly in Europe, andhas two advantages over the American method . a. The battery is not in circuit except when signals… … NE TO NEXT STATION KEY REPEATERS. In practical telegraphy, the high resistance of the line wire between theterminal stations, and imperfect insulation permitting leakage in dampweather, make it inexpedient to attempt to transmit signals over circuitswhose lengths have well-defined limits. But a…
Electrical engineering
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