Thanks to Peter Parker VK3YE for alerting us to this wonderful 1940 book. John F. Rider -- a real hero of electronic literature -- does a great job in discussing the practical aspects of oscillator circuits.
This excerpt from Rider's foreword gives a sense of the approach taken in this book:
The book covers a lot of material. In addition to the standard oscillator circuits, he discussed multivibrators, relaxation oscillators and much more. There is a chapter on magnetostriction in which he shows that this property is the basis for crystal oscillators AND the mechanical filters that we are familiar with. In fact he seems to take what we would consider a mechanical filter and put it in the grid circuit of a tube to make an oscillator.
He discussed the modulation of oscillators. He describes the Heising modulator that caused young Jean Shepherd so much teenage heartache.
Download the book here:
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Great find and a new entry into my library.
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