Elementary telegraphy : a manual for students; written specially to meet the requirements of the ordinary grade of the subject as published in the syllabus of the city and guilds of London Institute (1910)
Pendry, H. W. (Henry Walter) · London ; New York : Whittaker & Co. · leaf 163
. 129).The intervening stations, inwards, disconnect both linesuntil the deflection is removed, thus indicating the fault inthe section bevond the L^st disconnection. K5> Hli Fio. 129.—Localizing contact on a line. Faults in instriime)its can be located by rememberingthe connection of the… … Fig. 130.—Differential test of battery resistance. reasonable application of the rules above giA-en for faultsin lines will enable similar troubles in working sets to bereadily traced. Measurement of battery resistance.—A very simplemethod is indicated in Fig. 130, if an even number of cellsare to…
Telegraph
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