Accession No

4293

Brief Description

moving magnet, reflecting galvanometer, by Cambridge Scientific Instrument Company Ltd., English, 1908

Origin

England; Cambridge

Maker

Cambridge Scientific Instrument Company Ltd.

Class

electrical

Earliest Date

1908

Latest Date

1908

Inscription Date

Material

metal (brass); plastic (ebonite); glass; stone (quartz)

Dimensions

height 250mm; breadth 195mm; depth 175mm

Special Collection

Cambridge Instrument Company Collection

Provenance

Donated by the Cambridge Instrument Company.

Inscription

‘...No. 6982’ (below window)

Description Notes

Circular brass base; three levelling feet, brass with ebonite toes; two brass terminals; two bubble levels; controlling bar magnet on brass rod with swivel connection to base; vertical brass plate with circular glazed window showing suspended mirror and damping vane; pair of vertical coaxial coils in removable ebonite boxes; two parallel vertical magnets suspended on a quartz fibre between coils.

Condition: poor; incomplete (suspended system, lower coil pair, coil attaching nuts, controlling magnet, terminal nut missing).

References

Events