In the figure we have 3 oscillators with logic gates that can be triggered by external logic signals. The circuits were found in the Radio Electronics magazine of April 1987.
It is an ideal circuit for troubleshooting a bench, in addition to testing devices after repair, with...
This circuit controls an external light that turns on at dusk and off in the morning. The circuit is...
This circuit works both as a grid-dip (transistorized) and as an oscillator. The circuit is from a...