The movement of the LEDs in this circuit mimics the back-and-forth movement of a pendulum, making it suitable for clock projects. The circuit is from a Radio Electronics magazine from May 1978.
This multiple switching power supply was found in the April 1991 issue of Radio Electronics...
We found this circuit in an old documentation. Its purpose is to turn on warning lights when the...
This Power supply sources from 500 to 1,000 mA according the transformar and was found in a...