Reason slot meter, c.1920.
1918-1922
Powervault G100 Solar Storage Unit
2014
We Care Solar Suitcase
2017
Niobium battery by Nyobolt Ltd
2022
Sodium-ion battery made by Faradion Limited
2022
One of the First Rechargeable Batteries, about 1860
1860
Reeddi Capsule, solar powered portable battery
2021
Section of Superconducting cable
2013
British Wolf 'Cubmaster' electric motor drill
1950
Vertical galvanometer, 1830-1870
1830-1870
Three steam pipes from Bloom St power station
15 megawatt AC turbo-alternator with steam turbine
1923; 1923
Harland differential controller
1956
First direct reading moving needle ammeter, 1883
1883
Voltmeter, centre zero, scale 3-0-3V
Electric bell with mechanism inside the bell
Kelvin's patent multicellular Voltmeter no.501 by James White
Crompton portable test set
1925
Aron watt hour, clock type meter
"Rotary" powerfactor meter for 3 phase circuit 257817
Alioth's spring controlled voltmeter reading 0 to 250 volts
Lord Kelvin astatic wattmeter, 0-200W.
Wall switch, double pole with fluted brass cap
Electrodynamometer wattmeter no.217
Crompton 6" ammeter no.62214 - c.1916, 0 - 15amps.
Crompton 6" voltmeter no.10707 - c.1899, 0 - 150v.
Crompton 8" voltmeter no.26725 - c.1910
Hot-wire voltmeter
1893
Attracted armature cut-out
Crompton potentiometer
Moving magnet galvanometer
Crompton portable ammeter no.9614 - c.1899
ammeter, prototype - 1884 15-40amps
Crompton multi-range milli-ammeter
Kapp and Crompton alternating current voltmeter
Thermocouple ammeter
1937
Moving coil voltmeter
1894
Ampere-hour meter, Teague type no.62 (1891)
Ampere-hour meter, Frager type no. 326 (1890)
Linear motor
1948
Crompton cable-vulcanizing T.box
1894
Industrial type of electrodynamometer
1901
Six fuses mounted on card, Hedges mica foil type
Multi-range A.C. test set and movement
Terminal board with two 7 - way Busbars
Record frequency meter
Evershed portable testing set
Portable movable coil recording voltmeter no.157294
Evershed and Vignoles 500 volt portable generator
Astatic Current Indicator (No 615) marked 'Crompton's patent' maded by R E Crompton & Co
circa 1878-1927