In the figure we have the way to implement a monostable with an operational amplifier LM393. The configuration applies to other operators and the power supply must be symmetrical.
Found in American documentation from 1968 this circuit is based on discrete components in addition...
This simple circuit indicates, through an LED, when the water level of a filter (or other kind of...
This circuit appears in similar versions elsewhere on this site. The transformer is 110 V or 220 V...