This circuit was found in the Linear Applications Handbook of the National Semiconductor of 1994. Some of the components used are not easy to obtain, but equivalents can be used.
daptation of a common multimeter for the measurement of high voltages with high input resistance,...
This circuit was obtained from a Radio Electronics magazine from June 1969. The circuit uses a...
Found in a 1990s Popular Electronics, this circuit uses a small transformer matched to the...