Excerpt from How to Make Low-Pressure Transformers The hearty reception of the first edition of this small book has been very gratifying to the author who takes opportunity to answer, in the second edition, in the form of additional subject matter, a-number of questions pertaining to fundamental principles, addressed to him by those interested in transformer construction; hoping by this method to aid many who desire to depart somewhat from the printed specifications and construct with similar material, transformers for a variety of application. Pertaining to design it is probable there is no form of core that will effect so high operative efficiency as the form of discs recommended. 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.