This 5-range current measurement circuit was found in the September 1989 issue of Radio Electronics magazine. It uses an AC/DC converter.
The circuit shown, with the printed circuit board, was found in an article in the June 1990 issue...
According to the consulted American publication of the 1980s, a zener diode can be used for DC...
This circuit originally appeared in a publication of 1997. With the changes, the circuit can be...