Found in a 1980s documentation, this circuit uses as base a component of the era. The formula for determining the conversion is given next to the diagram.
This circuit is powered by the source of the equipment under analyze. We found this configuration in a 1974...
This low-current power supply was obtained in Japanese documentation from 1968. The currents are...
An input polarization resistor typically of 22 k is used, which serves as a load for the exciter...