Accession No

4268

Brief Description

moving coil, pointer voltmeter, by Cambridge Scientific Instrument Company Ltd., English, 1905 (c)

Origin

England; Cambridge

Maker

Cambridge Scientific Instrument Company Ltd.

Class

electrical

Earliest Date

1905

Latest Date

1905

Inscription Date

Material

metal (brass); glass; paper

Dimensions

height 176mm; base diameter 210mm

Special Collection

Cambridge Instrument Company Collection

Provenance

Donated by the Cambridge Instrument Company.

Inscription

‘...No. 3820’ (on case)

Description Notes

Cylindrical brass case; three levelling feet; glazed window on top showing white dial with mirror; two scales: 0 to 22 millivolts and 0 to 1600 degrees Fahrenheit; (added) paper scale, 0 to 100, glued onto upper scale; bubble level on top of case; cylindrical cover for suspension on top; two brass terminals labelled ‘PtRh’ and ‘Pt’ (latter connected to case) on side of case; wire connecting terminals (added); clamping screw between terminals.

Condition: fair (suspension intact); incomplete (bubble level missing).

References

Events