Lindemann electrometer
1924
Boys' contact electricity electrometer, c. 1891
1891
Leaf electrometer with ionization chamber
1900
Helmholtz's quadrant electrometer
1876
Electrometer, specially designed as an electrostatic wattmeter
1900
Kelvin attracted disc electrometer with replenisher
1895
Electrometer by Simmons
Quadrant electrometer with magnet control
1895
Capillary electrometer
1890
Kelvin quadrant electrometer
1890
Wilson gold leaf electrometer
1912
Gold leaf electrometer with sliding condenser
1886
Osram Electrometer T valve
Addenbrooke quadrant electrometer No.13
1902
Quadrant electrometer in fitted case
D.C. amplifier and electrometer
1960-1979
Station electrometer by James White
1867
Henley Pith-ball 'Electrometer', 1801-1825
1801-1825
Attracted disc electrometer
Sir W. Thomson's absolute electrometer No. 12
1886
Cuthbertson's balance electrometer
Lindemann electrometer
1924
Smith's capillary electrometer
1902
Kolhorster electrometer by Gunther & Tegetmeyer
Boys' pocket electrometer, c.1891
1891
Single leaf gold leaf electrometer, leaf detached
Dolezalek quadrant electrometer
1913
Lindemann electrometer serial no. C435384
1946
Kelvin portable electrometer No.91
String electrometer by Edelmann, Munchen
Elster and Geitel dissipation electrometer
String electrometer
1929
Quadrant electrometer
1945-1954
First divided ring (semicircular) electrometer
1857
Sir William Thomson's electrometer
1867-1896
Minchin's absolute electrometer
1901
Vibrating reed electrometer type no.616B serial no.S284
1960
Rhé electrometer designed by Louis Melsens, c.1875
1875
Kelvin portable electrometer
1867
Electrometer made by Pierre Curie, probably 1880s
1880-1890
Capillary electrometer
1900-1926
Replica of original Hertz apparatus
Capillary electrometer after Lippmann with components
1876
Kelvin divided ring electrometer and gauge, 1861
1861
Kelvin quadrant electrometer, 1857
1857
Minchin's absolute electrometer
1901
Peltier electrometer
1870-1889
Compton quadrant electrometer
1929
Electrometer by Unilab
1979