Found in old American documentation, this receiver transmits signals via the power grid. We can use it on links or remote control. The components admit equivalents.
We found this circuit in the May 1972 issue of Radio Electronics magazine. Its purpose is to teach...
Two comparators are used to indicate the status of a 9 V battery. The circuit is from Electronics Now...
This circuit was obtained in a 1965 American magazine translation. The photocell can be the type...