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 was published in the July 1993 issue of Electronics Now magazine. It uses a sensor from...
The simplest filter for this purpose is the one shown in the figure consisting of two coils and...
This simple circuit for switching RF signals was found in an RF Design from the 90s. The circuit...