This circuit was found in a 90’s Electronic Engineering. The signal is sinusoidal with the frequency given by the non-value components that form the resonant network.
This solid-state relay (SSR) or shield was found in a 1995 Electronics Now. The transistor can be...
This circuit simulates dusk by slowly dimming an incandescent bulb. It was found in the August 1998...
We found this circuit in December 1986, Radio Electronics magazine. It uses 3 inverters and has...