Accession No

2272

Brief Description

moving coil, reflecting galvanometer, by Gambrell Brothers and Company Ltd., English, 1/4 20th Century

Origin

England; London

Maker

Gambrell Brothers and Company Ltd.

Class

electrical

Earliest Date

1900

Latest Date

1925

Inscription Date

Material

wood; metal (brass, iron); plastic (ivorine); glass

Dimensions

height 193mm; breadth 165mm; depth 160mm

Special Collection

Provenance

Transferred from Department of Colloid Science, University of Cambridge, 1976.

Inscription

‘GAMBRELL BROS. & CO. LTD.
LONDON
SERIAL No. 42’ (top of case)
‘22’ (added on base)

Description Notes

Suspended coil, reflecting Galvanometer, Holden-D’Arsonval type.
Circular wooden base; three brass levelling feet; four brass terminals (three connected together); cylindrical brass case (painted black) with circular glazed window at front; cylindrical magnet; coil and circular mirror mounted on ivorine frame suspended between magnet poles; coil surrounds stationary iron core; clamping mechanism; stationary coil on wooden former can be connected in series with moving coil.

Condition good (suspension intact); complete

References

Events