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Design of a Low-Cost AC/DC Voltohmmeter

This paper describes the design of a low-cost portable multi-function meter that operates from either an internal dry cell or the ac line. The meter features a dc amplifier that uses a FET for high input impedance and for temperature compensation. Technical details of the dc amplifier, ac metering circuit, and the power supply are discussed.

Author: Colwell, James M.
Affiliation: Hewlett-Packard Company, Loveland, CO
AES Convention:31 (October 1966) Paper Number:463 Import into BibTeX

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