This circuit can measure voltages from 0 to 10 V with a very high input resistance. The circuit is from a 1974 Radio Shack documentation. The FET can be a BF245 and the instrument can be replaced by a common multimeter.
This circuit can measure voltages from 0 to 10 V with a very high input resistance. The circuit is from a 1974 Radio Shack documentation. The FET can be a BF245 and the instrument can be replaced by a common multimeter.
