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.
September 2016 - It can be purchased from Mouser Electronics the new antenna tuning circuit from...
This circuit uses a selector switch to select resistors for timings given in seconds. Capacitor C1 can be...
This circuit trips when the input voltage exceeds 13.8 V, which is an important value in the case...