Inside Out Library · Explore

American telephone practice (1905)

Miller, Kempster Blanchard, 1870-1933 · New York : McGraw publishing company · leaf 169

An illustration from American telephone practice, 1905, leaf 169
, bind- LOCAL BATTERY SUB-STATION EQUIPMENTS. 147 ing posts on the base of this box serving as terminals for theattachment of the flexible cord leading to the desk stand proper, aswell as the battery terminals and the line terminals. In this case,which is probably the simplest of all magneto desk… … FIG. 123.—TYPICAL DESK STAND. wirmg necessary is that from the line and the battery to the postson the base of the box. In Figs. 128 and 129 are shown similarcircuits for series and bridging instruments respectively, the differ-ence in this case being that a separate connecting rack is employedupon…

Telephone

Internet Archive · Cornell University Library · Public Domain Mark 1.0. Free to use for anything.

More pictures from American telephone practice

More like this