Found in an Electronic Design from the 90s, this circuit measures the phase difference between two signals using an electronic multimeter. The circuit makes use of components of the time.
Using a 555, this configuration appears elsewhere on this site. This is from American...
This circuit from a 90s Electronics Now, uses a 4010 gate as a signal amplifier. The circuit...
The circuit shown in the figure has a more efficient action, with an attenuation of 12 dB per...