This two-channel bargraph meter uses a single KAA2281 integrated circuit. Found in the January 1991 issue of Radio Electronics magazine. The stereo circuit drives 2 scales of 5 LEDs.
This simple 80's CMOS game was found in an English magazine of the time. It appears elsewhere on this...
This nuclear radiation detector was found in a 1977 FET publication. The circuit requires a 900 V...
This circuit limits the intensity of the output signal to a level given by the zener diodes. The...