Book Description

Excerpt from American Telephone Practice The intended Scope of this book is set forth in its title. To those interested the writer has endeavored to present in as clear a manner as possible the general principles of telephony, the design and construction of commercial apparatus, the circuits connecting such apparatus into operative systems, and the methods used in the construction, operation, and maintenance of these systems. No attempt whatever has been made to treat the subject from its purely mathematical standpoint, that being beyond the scope of this work. The apparatus and methods of both Bell and Independent companies have been given impartial attention. The writer sincerely thanks his friends, Mr. Wm. H. Donner and Mr. Wm. R. Mackrille, for their many suggestions and untiring labor in proof reading, and also Mr. W. D. Weaver, editor of the Electrical World and Engineer, for his interest and assistance throughout the entire preparation of this book. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.