Accession No

4273

Brief Description

moving coil, reflecting galvanometer, by Cambridge Instrument Company Ltd., English, 1933

Origin

England; London

Maker

Cambridge Instrument Company Ltd.

Class

electrical

Earliest Date

1933

Latest Date

1933

Inscription Date

Material

plastic (ebonite); metal (brass, iron); wood; glass

Dimensions

height 340mm; breadth 205mm; depth 230mm

Special Collection

Cambridge Instrument Company Collection

Provenance

Donated by the Cambridge Instrument Company.

Inscription

‘HIGH SENSITIVITY
GALVANOMETER
RESISTANCE 314.6 OHMS
AT 20 C.
No. L-55328
CAMBRIDGE INSTRUMENT CO. LTD.
ENGLAND.’ (on brass plate fastened to top of cover)

Description Notes

Ebonite base; three brass levelling feet; two bubble levels; two brass and ebonite terminals at front of base with clamping lever between; movement enclosed by rectangular wooden cover, held in place by four brass screws; brass suspension tube with removable brass top, for zero adjustment; glazed rectangular window with brass frame at front of cover, showing suspended coil surrounding fixed spherical iron core and mirror.

Condition: good (suspension intact); complete.

References

Events