This 10 A solid state relay was found in a 1980s documentation. It can work as a shield and implemented with modern equivalent transistors.
This circuit has both frequency and duty cycle control. We found it in the October 1992 Radio...
This circuit came out in a Frances Toute LÉlectronique magazine from July 1978, but can still be...
May 2016 - It can be obtained from Mouser Electronics new tricolors chipsLEDs from Broadcom for...