Accession No

2282

Brief Description

electrometer, reflecting, by Cambridge Instrument Company Ltd., English, 1928

Origin

England; Cambridge

Maker

Cambridge Instrument Company Ltd.

Class

electrical

Earliest Date

1928

Latest Date

1928

Inscription Date

Material

metal (brass); glass

Dimensions

height 230mm; breadth 220mm; depth 165mm

Special Collection

Provenance

Transferred from Department of Colloid Science, University of Cambridge, 1976.

Inscription

‘CAMBRIDGE
INSTRUMENT CO. LTD. ENGLAND
C114016 (with logo)’ (on case)

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 quadrant; the other earthed quadrant pivotted to expose suspended two-bladed vane, or ‘needle’; clamping device.

Condition: good (suspension broken); complete.

References

Events