Miller, Kempster Blanchard, 1870-1933 · New York : McGraw publishing company · leaf 610
directly with earth. By inserting aconducting plug in the hole, e, the local instrument would be short-circuited and the line left connected through. If the plug wereinserted in the hole, o-^ that end of the line terminating in plate Awould be grounded, while the local instruments would be… … FIG. 421.—SAW-TOOTH ARRESTER. in operative relation with the end of the line terminating in theplate A. When applied to a telephone instrument, or more properly, to asub-station equipment, the plates A and B form the terminals of theinstrument and also the terminals of the line, the plate C, as…
Telephone
Internet Archive · Cornell University Library · Public Domain Mark 1.0. Free to use for anything.
