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Weston moving-coil ammeter, 1889-1900

1889-1900

Combined voltmeter and ammeter

1900-1910

Spot galvanometer

1949-1960

Galvanometer, circular wooden case with metal lugs for securing to bench

1900-1910

A.C milliammeter for X-ray focus tube

1904

A.C. milliammeter, by A. Gaiffe, PAris, 1900-1910

1900-1910

Smiths combined water temperature gauge

1966

Raworth's patent ammeter (510 amps)

1888

Kapp & Crompton's current indicator (ammeter) no.223 by Crompton & Co.

1883

Galvanometer for use with thermocouple

1898

A.C. milliammeter, by A. Gaiffe, Paris, 1900-1910

1900-1910
Voltmeter and ammeter indicating the direct pull of a solenoid and tubular core

Voltmeter and ammeter indicating the direct pull of a solenoid and tubular core

Voltmeter and ammeter indicating the direct pull of a solenoid and tubular core

Voltmeter and ammeter

Galvanometer, magnetic needle type, wooden base, metal fittings in glass cover, by William Hart of Edinburgh, 1900-1920

Galvanometer, magnetic needle type

1900-1920
Set of 8 ammeters by Philip Harris Ltd. Six circular 0-3 amps, two quadrant 0-15 amps

Set of 8 ammeters by Philip Harris Ltd. Six circular 0-3 amps

1950-1970
Four ammeters in white plastic and perspex. 'Made in USSR Educational' on front

Four ammeters in white plastic and perspex

1970-1985
Moving coil galvanometer, designed by D'Arsonval, modified from earlier models, wooden base supporting large magnet and moving coil, scale over magnet, pointer on coil, French, 1890-1910

Moving coil galvanometer

1890-1910