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.
This circuit found in an American documentation from 1964, alters the duration of a pulse and can...
This circuit works both as a preamplifier and activates a relay when speaking in front of the...
This circuit was obtained in a June 1987 magazine Hands-On. It is a circuit that indicates on two...