This LED special effects circuit was found in the February 1992 Radio Electronics magazine. The circuit uses 4 LEDs and is controlled by R3.
This oscillator produces a sawtooth and square signals in the low frequency range. Other...
Texas Instruments UCC21225A is available from Mouser Electronics. It is an isolated gate driver...
We found this circuit loader in a French magazine Electronique Radio Plans from July 1993. The...