Speech memory board from System X Automatic Announcement Subsystem, 1979-1985
1979-1985
Artificial right hand, Europe
1915-1925
Anatomical model of the spine
1901
'Electric tonic' amusement machine, Europe, 1915-1925
1915-1925
Wheatstone printing telegraph, 1841
1841
One of the First Rechargeable Batteries, about 1860
1860
Pill coating machine, France, 1915-1925
1915-1925
Wooden-cased mill, Europe, 1701-1830
1701-1830
Molecular model showing the structure of insulin
1967
Prototype of the Brougham carriage
1838
Enema syringe
1701-1800
Cryptograph (coding and decoding machine) by Sir Charles Wheatstone, 1843-1875
1843-1875
Lissen Headphones, 1922-1930
1921-1930
Embossed hip-flask
1801-1900
Penicillium Mould presented by Alexander Fleming
1935
Crompton 6" voltmeter no.179- c.1882, 0 - 300v.
circa 1882
Chamberlain and Hookham DC ampere-hour meter
Crompton potentiometer
Fused wall-fitting switch
Lord Kelvin's paralleling voltmeter
Turnswitch with fuse (wire), c.1886 [lacks cover]
1886
Portable moving coil voltmeter
1902
Original Evershed meter
Reyrolle metal-clad 5A plug to BS 196
1955
Brush-Geipel automatic regulator
potentiometer no.114 - 1890
Siemens and Halske direct current indicating and integrating watt-hour meter
potential Inductor stick made by Neo Electrical Industries Ltd.
1962
White porcelain ceiling rose with integral fuse
1896
Walker photographic recorder
Unipivot galvanometer
Brass token. memorabilia.
electricity meter, Aubert clock type, 1890
Hot-wire voltmeter
1893
Evershed's portable ohmmeter no.20818
Aeolipile, French 18th century
1700-1799
recording moving iron ammeter
moving iron ammeter
1890-1900
Siemens electrodynamometer wattmeter (open instrument)
Electrodynamometer wattmeter no.217
electrodynamometer voltmeter
kilowatt-hour meter (intermittent integrating type) by Holden
mercury motor type electricity supply meter by Ferranti
1884
Archibald V Hill’s thermopile used to measure heat production, England, 1950-1960
1950-1960
Polythene brooch
1938
Model of a Froment motor with brush gear (incomplete)
Electric Construction Company mercury arc rectifier
Edison cut-out and bolt switch
Cuff type (scroll foot) microscope by James Mann, c. 1755
1750-1760
Modified form of John Marshall's Compound microscope
1725-1735