This sensitive electroscope uses a MOSFET 3N128 and can detect electrostatic charges of objects. The sensor is a metal sphere 2 to 4 inches of diameter or a loop of copper bare wire. Power supply is a 9 V battery.
This sensitive electroscope uses a MOSFET 3N128 and can detect electrostatic charges of objects. The sensor is a metal sphere 2 to 4 inches of diameter or a loop of copper bare wire. Power supply is a 9 V battery.
