This SCR relaxation oscillator was found in an 80's Electronic Design. It flashes a small incandescent lamp in frequency that depends on the capacitor.
We got this circuit from Radio Electronics from July 1990. The circuit mimics the sound of the red...
This circuit was found in a 1987 documentation. It is a timer that takes advantage of the signal of...
This TTL circuit found in the September 1996 issue of Electronics Now magazine doubles the...