Found in a Motorola documentation from the 70s, this circuit makes use of transistors of the time. Modern equivalents can be used. The diode also supports an equivalent.
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%....