This circuit activates a horn from an audio signal. This can be used for remote control via audio signals. The circuit is from a Radio Electronics from October 1965.
This power supply was featured in the December 1973 issue of Radio Electronics magazine. This type...
This circuit can be used as a time automation for driving motors in robotics and mechatronics. What we have...
The presented circuit makes use of operational ones that are not common in the market. More modern...