Found in an Analog Devices documentation from the 90s, this circuit uses a component of the time, not common nowadays.
This circuit sources a ramp signal with characteristic given by the diac. The circuit is powered...
The preamplifier using JFET presets a high input impedance and very low distortion. The input...
This is another one of the many debouncer circuits that the reader can find on this site, and it...