Miller, Kempster Blanchard, 1870-1933 · New York : McGraw publishing company · leaf 198
quent chapters in this book. CHAPTER XII. THE MAGNETO SWITCH^BOARD FOR SMALL EXCHANGES. By a magneto switch-board is meant a switch-board adapted tointerconnect lines, equipped with magneto sub-station apparatus.In other words it is a switchboard, the signal-receiving apparatusof which is adapted… … FIG. 154.—GROUNDED-CIRCUIT SWITCHBOARD. circles represent sub-station apparatus, it being understood that eachsuch apparatus comprises the usual call sending and call receiv-ing apparatus of the magneto type, as well as the usual talking ap-paratus. One terminal of each sub-station apparatus is…
Telephone
Internet Archive · Cornell University Library · Public Domain Mark 1.0. Free to use for anything.
