Found in a magazine 73 for radio amateurs of the 90s, this circuit converts a continuous voltage and another continuous voltage, but with insulation between the circuits.
To obtain an AND gate we have the configuration shown in the figure. With the values indicated for the...
This circuit has been removed from the component's datasheet. In it we have a monostable or...
Here we have the way to activate two common cathode displays with 4026 integrated circuits. The...