Abstract
To any one who desires to acquire a good practical knowledge of the art of telephony we can recommend this book. In order to get the full benefit from it, however, he should first study a good elementary treatise on the subject. Every telephonist has to spend much time and study in puzzling out the various wiring diagrams of the different units in a telephone system. In this book the circuit diagrams are the predominating feature. They are arranged in a logical and progressive manner, following generally the historical development of the art. Having once understood the diagrams of the component parts, it is easy to understand the wiring diagrams as a whole. The symbols are well chosen and a study of the circuit diagrams will give the necessary complementary knowledge to that given in text-books.
A Handbook of Telephone Circuit Diagrams: with Explanations.
John M.
Heath
By. Pp. x + 279. (London: McGraw-Hill Publishing Co., Ltd., 1924.) 12s. 6d. net.
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A Handbook of Telephone Circuit Diagrams: with Explanations. Nature 114, 606 (1924). https://doi.org/10.1038/114606d0
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DOI: https://doi.org/10.1038/114606d0