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.
We found this circuit in the La Radio per Tutti magazine in Italy in 1926. The coil can be made...
This circuit was found in the March 1999 issue of Electronics Now magazine. The meter is analog and...
The basis of this circuit is the 723 integrated circuit, not very common today. We obtained this...