Kelvin Quadrant Electrometer, 1866
1866
Wulf electrometer by Gunther and Tegetmeyer of Braunschweig
Peltier Type Electrometer, 1848
1845
Thompson quadrant electrometer by J. White of Glasgow
Thomson's Portable Electrometer, 1867-1888
1867-1888
Harris's balance electrometer, 1840-74.
1840-1874
Lindemann electrometer
Kelvin quadrant electrometer no. 99
1867-1896
Henley's quadrant electrometer
Lindemann electrometer
1930-1950
Quadrant electrometer
1828-1857
Discharging electrometer of unusual form
Kelvin quadrant electrometer in use until 28th May 1955
1955
part of Sir W. Thomsons portable electrometer
Part of a electrometer
1857
Parts of an electrometer
1857
part of Sir W. Thomsons portable electrometer
part of Sir W. Thomsons portable electrometer
Sir W. Thomsons portable electrometer
1867-1876
Farmer electrometer
1960
Vibrating reed electrometer by Ekco Electronics Ltd England
1957-1963
Electrometer, modified Henley pith-ball type
Automatic scaler type N530T
Kelvin Type Quadrant Electrometer, 1857
1857
Quadrant Electrometer
1867-1900
Vibrating reed electrometer by Ekco Electronics Ltd England
1957-1963
Clockwork & drum
Personnel monitoring system consisting of electrometer made by Baldwin Instrument Co. Ltd
1955-1960
Kelvin (White) quadrant electrometer (No.71)
1885