Accession No

2402

Brief Description

electrometer, reflecting, by Cambridge Instrument Company Ltd., English, 1931

Origin

England; Cambridge

Maker

Cambridge Instrument Company Ltd.

Class

electrical

Earliest Date

1931

Latest Date

1931

Inscription Date

Material

metal (brass); glass

Dimensions

height 230mm; breadth 180mm; depth 165mm

Special Collection

Provenance

Transferred from Department of Physical Chemistry, University of Cambridge, Cambridge, England, 1978.

Inscription

‘CAMBRIDGE INSTRUMENT CO. LTD.
ENGLAND
C156736 (with logo)’ (on case)
‘E2’ (on base and ring stand (added))

Description Notes

Circular brass base on black ring stand; three brass levelling feet; single brass terminal attached to base; electrical lead connecting quadrants to measured potential contained within shielding tube underneath base; cylindrical brass case with lens in circular window; top suspension plate supported on three brass pillars; two controls with circular scales on top plate for adjusting height of suspension and of one earthed quaddrant; the other quadrant pivotted to expose suspended two-bladed vane or ‘needle’; clamping device.
Similar to Wh: 2282.

Condition: good (suspension broken); complete.

References

Events