This circuit was found in a Mallory documentation from 1968. The integrated circuit is of the time, unusual in our day. Input sensitivity is 20 mV for 2 W output.
This circuit trips when a negative pulse is applied to its input or when the voltage drops below a...
This circuit was found in a 1978 British magazine, but it can still be mounted by simply replacing the...
This circuit was found in an article in Radio Electronics magazine. The issue is from July 1992...