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A Variometer for an Oscillator of Wide Frequency Range

 

作者: John Alvin Pierce,  

 

期刊: Review of Scientific Instruments  (AIP Available online 1937)
卷期: Volume 8, issue 1  

页码: 24-27

 

ISSN:0034-6748

 

年代: 1937

 

DOI:10.1063/1.1752183

 

出版商: AIP

 

数据来源: AIP

 

摘要:

A variometer is described, of such construction that it may be used as the tank inductance in a Hartley oscillator, maintaining a constant excitation ratio over a wide frequency range. When the circuit is arranged to keep the inductance‐capacitance ratio constant also, the efficiency and power output are correspondingly uniform. Although the problem, in the case illustrated, is complicated by the design of the oscillator for high plate voltages, the basic design is equally applicable to oscillators of lower power and much wider frequency range.

 

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