Accession No

1329

Brief Description

moving magnet, reflecting galvanometer, by Elliott Brothers, English, 1877 (c)

Origin

England; London

Maker

Elliott Brothers

Class

electrical

Earliest Date

1877

Latest Date

1877

Inscription Date

Material

glass; metal (brass); plastic (ebonite)

Dimensions

height 540mm; breadth 197mm; depth 195mm

Special Collection

Provenance

Transferred from the Cavendish Laboratory, University of Cambridge.

Inscription

‘ELLIOTT BROS.
LONDON
273’ (on back of case)
‘BL
E.125’ (on case (added, twice))

Description Notes

Cylindrical brass case with circular glass front; mounted on folding brass tripod with adjustable feet; two brass terminals and central, circular window on circular back plate; vertical post on top of case for controlling magnet, with knurled knob; single pair of coils in cylindrical ebonite boxes; mirror with single magnet suspended between coils; second magnet and damping vane suspended below coils.
Similar to Wh: 2400, but different screws attaching vertical magnet post.

Condition: fine (suspension broken); complete.

References

Events