Excerpt from Telephone TransmissionThe theoretical portion is very complicated and has been eliminated from these notes as far as possible, as it would require too much space for its elucidation.If further knowledge is required as to how the various formulae, etc., have been derived, reference may be made to the Bibliography given at the end.For practical purposes, only a small acquaintance with electricity, including alternating currents, is really necessary.The problem of telephonic transmission is essentially different from that of telegraphic transmission.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis 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.