Full Article: https://proaudiodesignforum.com/images/ ... -21-94.pdfThough it's built with standard components, this AC voltmeter contains many features not typically found in commercial meters; the most unusual is a selection of rectification modes. The meter responses available include true RMS (TRMS), average, RMS_calibrated average responding, positive peak, negative peak, positive-peak hold, and negative peak hold.
"AC Voltmeter Has Unique Features," M.J. Salvati, Electronic Design, November 21, 1994. Figure 1.
"AC Voltmeter Has Unique Features," M.J. Salvati, Electronic Design, November 21, 1994. Figure 2.