Telegraph engineering : a manual for practicing telegraph engineers and engineering students (1922)
Hausmann, Erich, 1886- · New York : D. Van Nostrand Company · leaf 112
hwith the bridged condenser c, and the shunt paths con-taining the resistances I and l^ and the condensers Ci andCij have there been explained. The operation of thetransmitter T in varying the available potential by meansof the leak resistance r^ and the added resistance ^2 hasbeen considered in… … return of their armatures to the rear contact points.Neutral relay R controls the operation of sounder 5ithrough the Diehl relay R\ as explained by means ofFig. 6. A high-resistance leak path to ground is providedby closing a switch introducing resistance /. Four localgenerators are shown in order…
Telegraph
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