In the figure we have the configuration of series regulator protector suggested by Motorola in 1968 documentation. The transistors are of the time, being able to be used modern equivalents.
This circuit shows how to use common logic functions to divide a frequency by 7. The output signal...
This circuit can be used in alarms, data links or áudio links using IR radiation. The circuit is...
This circuit was obtained from an American 80's documentation. It can be implemented with modern...