Specifications for the multiplex printing telegraph system : theory and operation (1920)
Western Union Telegraph Company · [New York?] : The Company · leaf 136
from the local ring, commonly called the6th pulse. Clips 7 to 25, inclusive, serve only as connectors between the printer andthe bank, 26 is connected to the tie up lamp segments on the distributor, and 31 is abattery connection, the polarity of which is opposite to the polarity received on 26…
Telegraph
Internet Archive · Northeastern University Library · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer04inte-374-160.webp)
![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer03inte-64-16.webp)
