Accession No

3345

Brief Description

Slide-wire DC potentiometer, by Cambridge Instrument Company Ltd., English, c. 1929

Origin

England; London

Maker

Cambridge Instrument Company Ltd.

Class

electrical

Earliest Date

1927

Latest Date

1927

Inscription Date

Material

wood; plastic (ebonite); metal

Dimensions

length 535mm; breadth 278mm; height 135mm

Special Collection

Provenance

Transferred from Department of Engineering, University of Cambridge, Cambridge, England, 1986.

Inscription

“CAMBRIDGE / INSTRUMENT CO. LTD., ENGLAND (with logo) / No. L-22644

Description Notes

Slide-wire DC Potentiometer; Cambridge Instrument Company, c.1929;
Rectangular wooden box with ebonite top; six pairs of ebonite covered terminals for battery, galvanometer, and three unknown potentials, respectively; two tapping keys; fine and coarse rotary current rheostats; eighteen-position rotary switch and rotary slide-wire calibrated in volts; three position rotary switch for selecting potentials.

Condition: good; complete (wooden cover added)

References

Events