FETVM-FET Voltmeter


Posted on Feb 7, 2014

This circuit is a series-FET Voltmeter FETVM. This FETVM to replace VTVM function while at the same time line used to clean the appliance cord. In addition, the rate of drift is far superior to vacuum tube circuit allows full-scale range of 0.5 volts is the most practical with vacuum tubes. Low-leakage, low noise 2N4340 is an ideal device for this application.


FETVM-FET Voltmeter
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