This circuit is from the Linear Applications Handbook of the National Semiconductor of 1994. Transistors are common, but the integrated circuit is not easy to obtain today.
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...