Trough battery, 1801-1838
1801-1838
Thomson's mirror marine galvanometer, 1858
1858
Mirror galvanometer for the transatlantic telegraph, 1858
1858
Lord Kelvin's 'ironclad' marine galvanometer, 1865-1866
1865-1866
‘Medico-Electrical Machine’ by Nairne and Blunt
1782-1793
Set of magnetical apparatus in case, by Adams
1790
Cathode ray furnace with specimens of coked diamonds
1906-1907
Kelvin & James White Ltd ampere
circa 1903
reflecting astatic moving iron galvanometer
circa 1920
Three magnetic line of force patterns made by Faraday and given to a friend
Methanol/air fuel cell, with component parts
1965
Station electrometer by James White
1867
Panel containing seven examples of P.O. telephone magnets
Faraday's specific inductive capacity apparatus, 1837, replica
1837
Head of hair on a metal stand
Induction Coil
1881
Electrostatic Generator
1895-1905
Leclanché battery
1887
Early d'Arsonval galvanometer made by Carpentier
1882-1900
Scale & telescope for use with mirror galvanometer
A.C. ammeter model 155
Small superconducting electromagnet
1965
Standard mica capacitator
Moving magnet gravity control "detector" galvanometer with 2
Moving iron ammeter with torsion head
Replicas of copper disc
1831
Direct reading capacity bridge by Leslie Dixon & Co.
1922-1940
Ayrton & Mather electrostatic gravity voltmeter by R.W. Paul
1893-1901
Plug type bridge box and galvanometer
Pocket voltmeter, moving iron repulsion type
1910
Plug type bridge box and galvanometer
Wire rheostat, 50 ohm 6 amp by Robert W. Paul
1900-1919
Moving iron meter
1927
Mercury interrupter
1860-1890
Resistance box
1912
App's clockwork interrupter
1890
Moving-coil ammeter of a commercial design modified by E.H.W. Banner
1928
Electric egg, by William Ladd, London, 1850-1883
1850-1883
Potentiometer, by Gambrell Bros. & Co. Ltd.
Cardew's voltmeter, patent, no. 147 (Ediswan)
1890
Selector switch
1948
Weston Normal Cell
1928
Early moving coil voltmeter
1889
Magnetic Cabinet, 1775-1800
1775-1800
Resistance divider box for use with potentiometer
Oscillograph, Cambridge Instrument Co. No. L 28466
1930
Sub-standard 1000 ohm resistance
1930
Rymer-Jones key
Motor driven oscillograph unit with "linear sweep" mirror
1925
Electrostatic oscillograph
1925