This circuit was found in a Motorola manual from 1968. As it can be obtained 20 V at 15 kHz from 120 V x 60 Hz. The components are of the time.
This traditional configuration can provide high voltages for an electric fence, for science...
We found this filter configuration in an old documentation. It is one of many possible ones that...
This circuit measures the conductivity of a saline solution, which is affected by the electrolysis effect....