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10474672
Electrical interrupter, c.1900.
10474673
Induction-compensator, c.1900.
10474674
Induction compensator, c.1900.
10474675
Induction compensator, c.1900.
10474676
Induction compensator, c.1900.
10474679
Diagram for stroboscopic speed regulation, c.1885.
10474680
Diagram for stroboscopic speed regulation, c.1885.
10314059
Fleming's original thermionic valves, 1889.
10190585
Electrical chimes, c 1769. Made by George A
10190599
Aurora tubes and flasks, c late 18th or ear
10190615
Globe electrical machine, c 1765. Designed
10193026
Crookes Maltese cross tube, 1879-1888.
10193032
Crookes' mill-wheel tube, 1879-1888.
10193043
Crookes' tube showing the phosphorescence of rubies, 1879-1888.
10193134
Armstrong's hydro-electric machine, 1845.
10193247
Faraday's electrolysis tube, 1833. 1931
10193716
Faraday's electrolysis globe, 1834. 1931
10207544
Wheatstone's magneto electric machine, 1860
10207651
Weston's direct reading ammeter, no.21478.
10207658
The first direct reading moving needle amme
10207989
Original Parsons three-phase turbo-alternat
10207995
Page's electric motor produced in 1851.
10208047
Electrolytic gas engine by Talbot and Wheat
10208305
A million volt impulse generator in action.
10211951
A million volt impulse generator in action
10211953
A million volt impulse generator in action
10214905
Crookes' 'shadow' tube, 1914.
10251506
Alexanderson alternator, 1908.
10262212
Cylinder machine, 19th century.
10262650
Crookes Maltese cross tube (left) and radiometer (right), 1879-1888.
10279067
Harris's Balance Electrometer, 1834.
10308396
Fleming's original thermionic valves, 1889.
10309217
Crookes tube, c 1888.
10309218
Working Geissler tube, c 1988.
10309219
Working Geissler tube, c 1988.
10309220
Working Geissler tube, c 1988.
10309221
Working Geissler tube, c 1988.
10309222
Working Geissler tube, c 1988.
10311226
William Crookes' famous 1887 Maltese cross experiment, c 1990s.
10311227
Davy's potash experiment, c 1808.
10312437
Fleming diode, British, 1905.
10312438
Fleming diode, British, 1905.
10314091
Crookes tube, c 1888.
10314118
Demonstrating a giant induction coil, 1877.
10317635
Soft 'round' receiving valve, c 1916.
10321736
Geissler tube, 1855.
10324054
Crookes radiometer, 1879-1888.
10324627
Original Parsons three-phase turbo-alternat
10324628
Original Parsons three-phase turbo-alternat
10324629
Original Parsons three-phase turbo-alternat
10324630
Original Parsons three-phase turbo-alternat
10324719
Thomson's cathode ray tube, 1897.
10324890
Large plasma ball, c 1990s.
10324891
Large plasma ball, c 1990s.
10324892
Large plasma ball, c 1990s.
10325773
'Illustrations of Natural Philosophy - Electricity’, 1850.
10325782
Quartz crystal in valve. Quartz crystals ar
10325893
Geissler tube, c 1980s.
10325971
Hauksbee's frictional electricity machine, 1706-1708.
10325991
Two metal rectifiers, c 1940s.
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