Indicated for calibrating digital instruments and circuits, this circuit was found in the June 1982 issue of Radio Electronics magazine. The circuit is based on components that are still available.
This circuit was found in a 1980s documentation for amateur radio. The circuit is for 9 MHz...
This circuit generates a linear sawtooth signal. The circuit was found in the December 1992 issue...
I found this simple basic circuit of rhythmic light in a 1980 documentation. We warn you to be...