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.
This power supply was found in a RCA publication from the 1970s. The circuit uses transistors from that...
Found in an American 1980s documentation, this circuit compares signals from two TTL sources,...
This circuit, which in our times would be called a shield, can also be used with other loads. The...