This circuit was found in the January 1995 Electronics Now magazine. Its configuration is valid for other operating systems. The source must be dual.
This circuit was found in a 1980s documentation. The low voltage circuit uses a PUT. Transistors can...
June 2017 - Mouser Electronics has a broad line of Cree products for use in horticulture, such as...
The TDA2040 is not a common IC these days, but if you find one you can build this high quality...