Miller, Kempster Blanchard, 1870-1933 · New York : McGraw publishing company · leaf 158
around the generator and call bell, thus shuntingthem out of circuit. The local circuit is closed and opened with thisarrangement at the contact, 2, in the same manner as shown in Figs.107 and 108. This shunting arrangement has an advantage overthe other in that bad contact in the switch-hook does… … FIG. nO.-SERIES SHUNTING CIRCUIT-HOOK UP. Still be effective, as a path for the calling currents would still existthrough the receiver and secondary winding of the induction coil. In Figs. Ill and 112 are shown two circuits representing in sim-plified form the arrangement of apparatus commonly used…
Telephone
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