The cut-off frequency of the circuit shown in the figure is 750 Hz, with the components used. The circuit applies to almost any operational amplifier and the power supply must be symmetrical.
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...