An Improvement in Constant-Frequency Oscillators
@article{Lampkin1939AnII, title={An Improvement in Constant-Frequency Oscillators}, author={Gregory Lampkin}, journal={Proceedings of the IRE}, year={1939}, volume={27}, pages={199-201} }
A simple oscillator circuit is described in which, by means of impedance transformation, the tube impedances are made small relative to those of the tuned circuit. As a result all frequency variations inherent in the tube are reduced by a factor of ten, or more. The method is applicable to oscillators throughout the range from audio to ultra-high frequencies.
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