Accession No

4029

Brief Description

rotor temperature indicator / moving coil, pointer ohmmeter, by Cambridge Instrument Company Ltd., English, 1927

Origin

England; London

Maker

Cambridge Instrument Company Ltd.

Class

electrical

Earliest Date

1927

Latest Date

1927

Inscription Date

Material

metal; glass

Dimensions

depth 210mm; breadth 202mm; height 115mm

Special Collection

Cambridge Instrument Company Collection

Provenance

Donated by the Cambridge Instrument Company.

Inscription

‘DEGREES CENTIGRADE
CAMBRIDGE INSTRUMENT CO., LTD. ENGLAND. NO L24882’ (on dial)
‘CAMBRIDGE
ROTOR TEMPERATURE INDICATOR’ (on metal plate above dial)

Description Notes

Black metal case designed for hanging on wall bracket; two pairs of terminals on bottom, marked ‘ROTOR’ and ‘SHUNT’ (illegible); rectangular glazed window on front showing mirror and white dial; non-linear scale, 0 to 50 divisions.

Condition: poor (pointer inoperative, internal resistor burned, case scratched); complete.

References

Events