Found in an Electronic Design from the 80's, this circuit monitors a three-phase line, activating a relay when one of the phases is missing.
This circuit was obtained from ancient American documentation. The circuit combines a JFET with a...
In the figure we have an application of an oscillator 4013 as voltage multiplier. It consists of a...
Found in Linear Technology documentation from the 1980s, this circuit has an accuracy of 0.01%....