This book was transcribed from scans of the original found at the Internet Archive. Tables are represented as images. The index of the original book has been removed, but the catalog of books from the publisher has been included. There was no book cover image in the scans so I created one. In this work, the author has endeavored to present a book embracing practical information for those who may wish to build for private or experimental use a set of wireless instruments which are more than toys but yet not so expensive as the commercial apparatus.…
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