We found this CMOS circuit based on the PLL4046 in the December 1989 issue of Radio Electronics magazine. The circuit is powered by a 9 V voltage.
This class B push-pull amplifier circuit with a few hundred milliwatts of power was found in an...
In the figure we have a window detector that uses only a voltage comparator. The circuit can use...
This circuit was found in an old American documentation. The operational used is of the...