Dolezalek quadrant electrometer
1913
String electrometer by Edelmann, Munchen
Helmholtz's quadrant electrometer
1876
Kelvin quadrant electrometer
1890
Quadrant electrometer with magnet control
1895
Smith's capillary electrometer
1902
Henley Pith-ball 'Electrometer', 1801-1825
1801-1825
Attracted disc electrometer
Lindemann electrometer serial no. C435384
1946
Sir W. Thomson's absolute electrometer No. 12
1886
Kelvin attracted disc electrometer with replenisher
1895
First divided ring (semicircular) electrometer
1857
Lindemann electrometer
1924
Kolhorster electrometer by Gunther & Tegetmeyer
Cuthbertson's balance electrometer
Replica of original Hertz apparatus
String electrometer
1929
Electrometer, specially designed as an electrostatic wattmeter
1900
Capillary electrometer
1890
Elster and Geitel dissipation electrometer
Gold leaf electrometer with sliding condenser
1886
Station electrometer by James White
1867
Leaf electrometer with ionization chamber
1900
Wilson gold leaf electrometer
1912
Quadrant electrometer in fitted case
Electrometer by Simmons
Lindemann electrometer
1924
Boys' contact electricity electrometer, c. 1891
1891
Osram Electrometer T valve
Boys' pocket electrometer, c.1891
1891
Single leaf gold leaf electrometer, leaf detached
Glass cover for electrometer
1857
electrometers
Discharging Lane electrometer for fitting to prime conductor
Vibron electrometer
Vibron laboratory electrometer converter unit
Portable electrometer model 37C (serial no. 37161C). E.I.L.
Vibron electrometer model 33B (serial no. 33713). E.I.L.
Part of Kelvin's quadrant electrometer
core part to electrometer
1861
Capillary electrometer after Lippmann with components
Capillary electrometer after Lippmann with components
Base from discharging electrometer
1780
Discharging Lane electrometer for fitting to prime conductor
1780
Quadrant electrometer
1945-1954
Vibron electrometer model 33C-2 (serial no. 334251C). E.I.L.
Portable electrometer
Portable electrometer
Addenbrooke quadrant electrometer No.13
1902
D.C. amplifier and electrometer
1960-1979