Miller, Kempster Blanchard, 1870-1933 · New York : McGraw publishing company · leaf 157
ry coil of the distant receiving station, provided, ofcourse, the hook at that station is also in its raised position. The arrangement shown in Figs. 107 and 108, just described, isthat of the ordinary local battery or magneto-telephone adapted toseries work in common use to-day. The hook lever… … FIG. 109.-SERIES SHUNTING CIRCUIT-HOOK DOWN. use. It is to have the hook lever render the talking apparatus orthe calling apparatus inoperative by short-circuiting them instead ofopening their circuits. Such an arrangement is shown in Figs. 109and no, where it will be seen that when the hook is…
Telephone
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