This circuit is from an American 1964 documentation. Transistors of the time are used, but modern equivalents can be employed.
Using a 4018 IC and one gate of the 4081 it is possible to divide the frequency of digital signals by...
This circuit, extensively explored in this section and in circuits on this site, is recommended to...
This capacitive switch or approximation relay was found in a 1980s US publication. Power should...