We found this time base circuit in a timer project from the August 1972 Radio Electronics magazine. The circuit takes advantage of the 60 Hz signal from the power grid.
The LM100 integrated circuit is quite old, still of a metallic enclosure type. The circuit shown in...
Found in an Electronic Design from the 90s, this circuit makes use of components from the time. The...
This circuit is from an Italian magazine of 1983, but it can be assembled with the most modern...