Noise and impedance measurements in voltage regulator tubes

The results of a series of measurements of the admittance and the noise of OA3 voltage regulator tubes over a frequency range of 1 cycle/sec—30 mc/sec are presented. It is shown that the noise resistance of the tube is relatively constant below 1 mc/sec and that the equivalent saturated diode curren...

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Bibliographic Details
Published in:Physica 1957, Vol.23 (6), p.943-952
Main Authors: van der Ziel, A., Chenette, E.R.
Format: Article
Language:English
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Summary:The results of a series of measurements of the admittance and the noise of OA3 voltage regulator tubes over a frequency range of 1 cycle/sec—30 mc/sec are presented. It is shown that the noise resistance of the tube is relatively constant below 1 mc/sec and that the equivalent saturated diode current of the tube is relatively constant above 1 mc/sec. The measurements indicate that both the admittance and the noise at low frequencies are influenced by the same current multiplication process. A tentative theory of the admittance and the noise is presented; it can explain most of the experimental data.
ISSN:0031-8914
DOI:10.1016/S0031-8914(57)95429-0