This circuit was found in American documentation from the 1980s. The integrated circuit used is a voltage comparator of the time. Modern equivalents can be tested.
The circuit shown enables dynamic diode testing with an oscilloscope. We found this configuration in a...
The circuit shown in the figure is quite interesting in control and alarm applications. This...
This different power control circuit with SCR was obtained from a 1967 magazine. The SCR can be...