We found this circuit in a documentation from the 90's. Information on the A/D converter was not given but types can be used according to the application.
This instrument was obtained in a documentation for radio amateurs of 1976. The circuit measures...
This circuit was found in a computer publication from the 1970s. The transistors can be the BD135...
September, 2017 - Mean Well DC-DC regulators from 10 to 30 W are already available on Mouser...