Telegraph engineering : a manual for practicing telegraph engineers and engineering students (1922)
Hausmann, Erich, 1886- · New York : D. Van Nostrand Company · leaf 67
ue or decay more rapidly to zero in one relay coil thanin its companion coil, the armature would give a momen-tary kick and produce a false signal upon each depressionor release of the home key. When the resistance andcapacity of the artificial line in a duplex circuit are soadjusted that the… … Fig. 5. signalling is given in Fig. 5. The resistance between theterminals A and B can be varied from 10 to 11,100 ohms,and each of the two condenser sets can be adjusted from o.ito 3.0 microfarads. This wide adjustment permits of itsuse on Hues of different lengths, resistances and…
Telegraph
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