Miller, Kempster Blanchard, 1870-1933 · New York : McGraw publishing company · leaf 519
mplete, from a local subscribers line on the left to atoll line on the right, are shown in Fig. 355. In this system the repeating coil which separates the commonbattery line from the toll line is included in the cord circuit itselfinstead of in the trunk line. One-half of each cord circuit, in… … FIG.32 355—COMPLETE WESTERN ELECTRIC TOLL CIRCUIT, SYSTEM B. 497 498 AMERICAN TELEPHONE PgACTICE. clearing-out drop bridged across the tip and ring strands. Eachcord circuit is equipped with a repeating coil key, K^, which is sowired that when thrown the repeating coil, K, is cut out of circuitand…
Telephone
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