This compact power supply can be used on the workbench for up to 1 A load. The transformer has 1 A secondary current. The integrated circuit must be mounted on a heatsink.
This circuit shows how we can take advantage of two old phones in a simple communication system. The...
This circuit, which appears in this section elsewhere, is from an American 1980s documentation....
This circuit from a Radio Electronics from March 1964 uses an RF transistor of the time. Can be...