This circuit is from a 1968 documentation. It generates a non-symmetrical signal with the waveform shown next to the diagram. Transistors are of the time, but modern equivalents can be used.
This circuit was found in American documentation from 1966. It uses a hall effect sensor at the...
This configuration often addressed on this site is from a 2000 documentation. The circuit can be...
The four NAND gates of a 4011 are used in the clocked R-S flip-flop shown here. The circuit is set and...