Found in 90's Electronic Engineering this circuit can be used to measure phase angles between two signals from 0 to 180 degrees. The components used admit modern equivalents.
This circuit was obtained from Radio Electronics from the 90s. The infrared sensor is of an...
In the figure we have a typical relaxation oscillator with a SIDAC as well as waveforms and...
Other series amplifiers such as the MC3301, MC3401 and LM2900 can be used on this circuit. We...