This circuit was found in a 1980s English documentation. It is intended for old xenon lamp flashes. However, the circuit can be adapted for other applications.
This circuit is from 1990 documentation. When we press D1 the lamp remains on for a time interval that...
Some old multimeters have a high resistance scale that has an internal circuit powered by a 22.5 V...
This circuit, from a 2001 documentation, appears elsewhere on this site. Its purpose is to obtain a...