Found in the September 1982 issue of Radio Electronics magazine, this circuit triggers a relay intermittently. Triggering is done by a reed switch, but other types of sensors can be used.
This power supply was obtained from an Electronic Design from the 90's. The circuit applies to...
This is a 6-bit counter, ideal for digital electronics classes or as a electronics teaching...
This circuit is from a 1980s Signetics documentation. The circuit separates the modulation signal from a...