Excerpt from Investigation of the of the Quality of Frequency Modulation Produced by a Sinusoidal Variable CondenserWe shall consider first a simple case for obtaining sinusoidal capacity variation which depends on the area of coincidence between two geometrical figures in parallel planes when one is projected upon'the other. This is taken from a paper on An Electrostatic Alternator by Professor e.h. Lyon.About the PublisherForgotten Books pub...
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