PRECISION AC VOLTMETER


Posted on Feb 4, 2014

Measures a-c voltages between 95 and 135 v with 0. 6% accuracy while using ordinary 2% accuracy meter. Zener diodes provide reference voltage. -D. S. Belanger, Simple Circuit Increases Measurement Accuracy, Electronics, 38:22, p 69.


PRECISION AC VOLTMETER
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