An Improvement in Constant-Frequency Oscillators

  title={An Improvement in Constant-Frequency Oscillators},
  author={Gregory Lampkin},
  journal={Proceedings of the IRE},
  • G. Lampkin
  • Published 1 March 1939
  • Physics
  • Proceedings of the IRE
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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