. American telephone practice . this relay will, therefore, be operated by the removal of the sub-scribers receiver from its hook. 348 AMERICAN TELEPHONE PRACTICE. The auxiliary spring, s, in the jack, which makes contact withthe corresponding sleeve on the plug is connected to that terminalof the line relay which is not connected to the tip side of the line. Be-tween the corresponding contact on the answering plug and the tip. FIG. 281.—DETAILS OF AMERICAN ELECTRIC CIRCUIT. contact is permanently bridged the io-ohm coil of the relay S. As aresult of these connections the line relay, A, is shu


. American telephone practice . this relay will, therefore, be operated by the removal of the sub-scribers receiver from its hook. 348 AMERICAN TELEPHONE PRACTICE. The auxiliary spring, s, in the jack, which makes contact withthe corresponding sleeve on the plug is connected to that terminalof the line relay which is not connected to the tip side of the line. Be-tween the corresponding contact on the answering plug and the tip. FIG. 281.—DETAILS OF AMERICAN ELECTRIC CIRCUIT. contact is permanently bridged the io-ohm coil of the relay S. As aresult of these connections the line relay, A, is shunted by the io-ohmcoil whenever a plug is inserted into a jack. The line circuit, simplified to illustrate more clearly the actionwhen a subscriber is calling, is shown in Fig. 281. The condition


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