This circuit was found in a 90s Popular Electronics. The integrated circuit used is uncommon today. The power is about of 2 W.
Mouser Electronics is offering the new ultra-low power microcontrollers CC26xx SimpleLink ™ for...
CL88020 is a Next-Generation Device Designed for Offline Lighting CHANDLER, Ariz., July 10, 2017 — A...
The XR2206 is not a common component today, but if you have one you can build this function...