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An NMR Preamplifier with Improved Signal‐to‐Noise Performance

 

作者: T. K. Davies,   B. C. Manning,  

 

期刊: Review of Scientific Instruments  （AIP Available online 1973）
卷期: Volume 44, issue 10  

页码: 1513-1514

 

ISSN:0034-6748

 

年代: 1973

 

DOI:10.1063/1.1685987

 

出版商: AIP

 

数据来源: AIP

 

摘要:

A practical preamplifier modification is described which replaces the vacuum tube amplifier by a low noise cascoded dual field effect transistor. An improvement of 10 in signal‐to‐noise ratio has been effected using the Varian 4333 probe. These modifications are of potential application to NMR spectrometers other than the HA series.

 

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