The ADC801 is not an easy component to obtain today, but the configuration is worth reference. The circuit is from National Semiconductor's Linear Applications Handbook.
This Signetics circuit uses a double 555 (556) to generate tone bursts at frequencies determined by...
We found this circuit in an English publication from 1980. It provides a logical output signal when...
This circuit sources a ramp signal with characteristic given by the diac. The circuit is powered...