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
Sir W. Thomson's absolute electrometer No. 12
1886
Kelvin attracted disc electrometer with replenisher
1895
Kolhorster electrometer by Gunther & Tegetmeyer
Lindemann electrometer serial no. C435384
1946
Cuthbertson's balance electrometer
First divided ring (semicircular) electrometer
1857
Lindemann electrometer
1924
Wilson gold leaf electrometer
1912
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
Leaf electrometer with ionization chamber
1900
Station electrometer by James White
1867
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
Quadrant electrometer
1945-1954
Addenbrooke quadrant electrometer No.13
1902
D.C. amplifier and electrometer
1960-1979
Kelvin portable electrometer No.91
Electrometer by Unilab
1979
Electrometer made by Pierre Curie, probably 1880s
1880-1890
Vibrating Reed Electrometer
1975-1980
Kelvin absolute electrometer, 1855
1855
Capillary electrometer after Lippmann with components
1876
Compton quadrant electrometer
1929
Sir William Thomson's electrometer
1867-1896
Peltier electrometer
1870-1889
Minchin's absolute electrometer
1901
Kelvin portable electrometer
1867
Capillary electrometer
1900-1926
Addenbrooke electrometer
Volta electrometer with insulated collector
Kelvin divided ring electrometer and gauge, 1861
1861