Accession No

2436

Brief Description

universal galvanometer shunt, by Cambridge Instrument Company Ltd., English, 1932

Origin

England; London

Maker

Cambridge Instrument Company Ltd.

Class

electrical

Earliest Date

1932

Latest Date

1932

Inscription Date

Material

wood; plastic (ebonite); metal (brass); ceramic

Dimensions

length 140mm; breadth 118mm; height 108mm

Special Collection

Provenance

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

Inscription

‘UNIVERSAL GALVANOMETER SHUNT.
CONSTANTAN
No. L-50765
CAMBRIDGE INSTRUMENT CO. LTD. ENGLAND (with logo)’ (on top)

Description Notes

Galvanometer shunt, by Cambridge Instrument Company, English, c. 1933.

Rectangular wooden box with ebonite top; four ebonite covered brass terminals; nine-position rotary switch with ebonite knob and white arrow; dial marked ‘1’, ‘3’, ‘10’, ‘30’, ‘100’, ‘300’, ‘1000’, ‘0’, ‘OFF’; ebonite and brass locking tapping key to short circuit galvanometer; seven coils on ceramic bobbins arranged in circular frame of switch, fastened to underside of top plate.

Condition: good; complete.

References

Events