Publisher's Synopsis
Excerpt from The Telephone: Outlines of the Development of Transmitters and Receivers
This little book is offered without apology. Its issue has been prompted by the fact that in no book which has come to my notice, on the same subject, is there a clear and connected explanation of the principles underlying the action and the design of telephone transmitters and receivers. I have avoided making a descriptive catalogue of instruments, and have endeavored to set forth the facts and principles in such a way that they will be easily and thoroughly understood. For this reason, those instruments only have been described which have demonstrated their importance by long service, or which seem to mark steps in the development of modern transmitters and receivers. A thorough grasp of these principles will make it easy to apply them to individual instruments.
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