This old circuit from the 80's generates logic signals with 50% active cycle (squares). The integrated circuit used is not common today, but equivalent logic functions can be used in a modern version.
This circuit is from the LM317's own manual obtained from an old documentation. The IC should be...
This circuit should be placed between a turntable and recorder or playback media from the input to...
This simple 10-position roulette circuit with the 4017 found a 1987 documentation. The circuit can...