Accession No

1382

Brief Description

moving magnet, reflecting galvanometer, by Cambridge Scientific Instrument Company, English, 1881. Ordered by Lord Rayleigh for the Cavendish Laboratory

Origin

England; Cambridge

Maker

Cambridge Scientific Instrument Company

Class

electrical

Earliest Date

1881

Latest Date

1881

Inscription Date

1881

Material

wood; metal (brass); glass; stone (mica)

Dimensions

height 515mm; depth 215mm; breadth 214mm

Special Collection

Provenance

Transferred from the Cavendish Laboratory, University of Cambridge.

Inscription

‘CAMBRIDGE SCIENTIFIC
INSTRUMENT COMPANY.
CAMBRIDGE 1881.’ (on brass plate on base)
‘E 94’ (on brass plate on base (added))
‘14’ (on base (added))

Description Notes

Moving magnet, reflecting galvanometer, Cambridge Scientific Instrument Company, 1881. Ordered by Lord Rayleigh for the Cavendish Laboratory.

Six-sided black wooden base; three brass levelling feet; four brass terminals; brass standard supporting suspension and post for controlling magnet; two brass plates, hinged at bottom on either side, supporting two coils; mirror and magnets suspended between coils; mica disk (without magnet) suspended in cavity below mirror.

Condition: good (suspension broken); incomplete (controlling magnet missing).

References

Events