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