This circuit with the CA3059 was found in the July 1995 Elexctronics Now magazine. The signal must be DC, and the circuit is not isolated from the mains.
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...