This circuit was found in an ancient American documentation. The power supply is not given, but we have the voltages used. The relay is sensitive type for high voltage.
This circuit is from a 1980s Motorola documentation. The circuit can be made with modern...
This anti-ringing circuit was found in an English documentation from 1996. The integrated circuit is...
This circuit was found in an ancient American documentation. With it is possible to double the...