This 80's circuit uses a microcontroller programmed to generate various songs. The circuit can serve as the basis for a modern design, for example using Arduino. The old circuit included a small audio amplifier.
This circuit is from a 1967 publication and applies to incandescent lamps up to 600 W. Triacs must be...
This is a commercial circuit from the year 1958. Transistors are germanium types and transformers...
ON Semconductor FFSP0665B 650V 6A SiC Schottky Diodes Available through Mouser Electronics, these...