This analog volt-ammeter was found in an Electronics World of 1968. It makes use of a 0-1 mA analog milliammeter. Accuracy depends on the components.
The transistors of this circuit found in an English 1980s documentation may be the modern BC548...
May 2017 - Mouser Electronics has announced the availability of the new ADM2795E transceiver from...
This circuit was found in a Radio Electronics of July 1984. It consists of the traditional 1 A...