American telegraphy and encyclopedia of the telegraph; systems, apparatus, operation (1909)
Maver, William, jr. [from old catalog] · New York, Maver publishing company · leaf 360
rangement gives the western circuit control of the eastern cucuit, and vice versa,inasmuch as the western distant station, having control of pr, can reverse the bat-tery mb ; and the eastern distant station, having control of pr, can reverse the batteryMB. It will thus be seen that the Wheatstone… … 3o8 AMERICAN TELEGRAPHY,
Telegraph
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer04inte-166-59.webp)
