This circuit was obtained from an American technical manual from the 80's. The integrated circuit is an operational of the time that can be replaced by a modern equivalent.
This is one of the many modulated siren versions that can be found on our website. We found it in a...
This circuit was found in the May 1983 issue of Radio Electronics magazine. The SSM7046 integrated...
This isolated shield uses a common optical coupler that supports several equivalents. The resistor in...