Found in an Electronic Design from the 90s, this circuit makes use of integrated regulators of the time. These components must be provided with heat sinks.
This simple switch appeared in an article to be made with SMD components. The magazine is Radio...
This circuit was obtained from an American documentation of 1967. The circuit provides a 30 mA...
Originally this circuit was indicated to be used in a garage door control, but it can be modified for...