Accession No

4288

Brief Description

galvanometer, moving magnet, reflecting type, by Cambridge and Paul Instrument Company Ltd., English, 1923

Origin

England; Cambridge

Maker

Cambridge and Paul Instrument Company Ltd.

Class

electrical

Earliest Date

1923

Latest Date

1923

Inscription Date

Material

metal (brass); plastic (ebonite); glass

Dimensions

height 320mm; diameter of base 250mm

Special Collection

Cambridge Instrument Company Collection

Provenance

Donated by the Cambridge Instrument Company.

Inscription

‘TTHE CAMBRIDGE AND PAUL
INSTRUMENT CO. LTD. ENGLAND
C42855 (with logo)’ (on upper surface of case)

Description Notes

Circular brass base with four pairs of brass terminals mounted on two curved ebonite plates (front and back, upper and lower coils); three brass levelling feet; stepped-diameter brass cylindrical cover; inner suspension tube of glass; front and back pairs of coils slide away/toward suspended magnet system, which consists of two groups of thirteen magnets, arranged alternatively on opposite sides of a glass rod; a mirror is fixed midway between the magnet groups.

Condition: good (suspension standard loose); incomplete (suspended system missing).

References

Events