An Oscillator for Ultra-High Frequencies
- 1 June 1938
- journal article
- research article
- Published by AIP Publishing in Review of Scientific Instruments
- Vol. 9 (6) , 170-174
- https://doi.org/10.1063/1.1752512
Abstract
A coaxial line stabilized oscillator that is easily and rapidly adjustable over the frequency range from 70 to 700 Mc per sec. is described. Rugged mechanical construction, substantially complete shielding and coaxial line output connection are other features. With a 316A type vacuum tube, outputs of several watts are obtained over the entire range. Measurements indicate that for best stability it is necessary to tune precisely both filament leads, in addition to providing a high Q tank circuit. An optimum resonant length (λ/4, 3λ/4, ···) of line was not found. The stability decreases as the frequency increases, becoming very poor for frequencies near the limit of oscillation of the tube.Keywords
This publication has 5 references indexed in Scilit:
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