Conversion of an E−3 ESR spectrometer to 1-MHz field modulation

Abstract
Conversion of Varian E−3 spectrometer to 1−MHz magnetic field modulation is described. The Normal 100−kHz mode of operation of the instrument is not affected by the modifications. The system has an overall response time jof approximately 2 μsec, and has senstivity comparable to the 100−kHz receiver under similar conditions.
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