In the figure we have one of the many ways to program the counting of a 4017. The circuit uses additional gates and was found in the Radio Electronics magazine of April 1989.
You can measure capacitances across a large range of values using the AC Power line frequency as...
This circuit is from a 70s linear integrated manual. The integrated circuit used is uncommon today...
This circuit was found in a Popular Electronics from the 90's. The circuit can be used to convert...