This circuit was found in an ancient American documentation. The power supply is not given, but we have the voltages used. The relay is sensitive type for high voltage.
Figure 1 shows a hal-wave voltage doubler operating with the Power-supply voltage. Output current...
In the figure we have a circuit that allows us to obtain a variable voltage of approximately 0.5 to 25 V...
This circuit was obtained from a Linear Technology manual from the 1990s. The components may have...