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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

Raworth's patent ammeter (510 amps)

1888

Smiths combined water temperature gauge

1966

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

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

Galvanometer, magnetic needle type

1900-1920
Voltmeter and ammeter indicating the direct pull of a solenoid and tubular core

Voltmeter and ammeter

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
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