This interesting circuit converts BCD signals into a voltage that can be used in an analog application. The circuit was found in the July 1991 issue of Radio Electronics magazine.
WWV is the prefix for the United States' time and frequency patterns station. These signals can be used...
This wired control circuit serves both volume and balance between channels. We found it in Radio...
This circuit produces a loud audio tone by a small loudspeaker. Power supply voltage ranges from 5...