Excerpt from The Design Construction of Induction Coils I am aware that a number of books on induction coils have been published, but for the major portion these are small and valueless, while the more worthy ones contain information that is neither connected, thorough, nor specific. There is one exception, however, the work of Hare; but this admirable treatise is based on the construo tion of a single large coil and which is built on strictly orthodox English lines. American methods differ materially from those em ployed in England and on the Continent, and while coils constructed by our makers are less expensive, they are certainly quite as efficient and mechanically stronger than those built by our friends across the Atlantic. The present work treats of eight different sizes of coils, varying from a small one giving 143-inch sparks to a large one giving 12-inch sparks. These various sized coils are included in three specific designs, and I have tried to tell in easily comprehensible language each process in sequence, together with the dimensions of each part down to the smallest screw. 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.

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