This circuit was found in an 80's Electronic Engineering. The power supply must be symmetrical. The no value components are calculated for the desired frequency.
This effects circuit was found in a 1995 documentation. The circuit causes a sequence of LEDs to...
Indicated for the medium wave range, this receiver was found in a publication by Gernsback from...
We found this circuit in the October 1987 Radio Electronics magazine. The circuit uses an...