The circuit presented requires a simple 12 V supply and was suggested by Motorola in its 1990 Linear Databook.
This capacitive switch or approximation relay was found in a 1980s US publication. Power should...
The circuit shown in the figure can be useful for readers who have an oscilloscope that does not...
We got this circuit in a publication of 1987. This is an audio limiter, a circuit that cuts peaks...