In this project, I'll make a small circuit capable of controlling a servo, it is a servo tester made out of a 555 timer IC.

Just a signal generator making a 125 kHz square wave, coupled to a two transistor buffer pumping a tuned circuit.

In this video, learn how to build a rotating TV antenna with the highest efficiency, designed to rotate 360 degrees. This antenna is powered by an amplifier, and the entire circuit construction is ...

A simple push button circuit that connects the DC rail to the load when pressed once and disconnects it when pressed a second time.