Accession No

4300

Brief Description

Standard resistor, resistance unmarked, by Cambridge Scientific Instrument Company Ltd., English, c.1902

Origin

England; Cambridge

Maker

Cambridge Scientific Instrument Company Ltd.

Class

electrical

Earliest Date

1902

Latest Date

1902

Inscription Date

Material

metal (brass, other); plastic (ebonite); wood

Dimensions

length 190mm; breadth 79mm; height 84mm

Special Collection

Cambridge Instrument Company Collection

Provenance

Donated by the Cambridge Instrument Company.

Inscription

on top bar: “CAMBRIDGE SCIENTIFIC INSTRUMENT CO. LTD. No. 1770”
on top bar (added): “t.r. 36”
on top bar (added): “N.P.L. 40 (with logo)”

Description Notes

Folded metal plate resistor; holes drilled in bends of resistance plate; supported at two ends by brass posts with terminals, mounted on rectangular wooden base; second pair of brass terminals mounted near ends of resistor; two horizontal ebonite bars support both top and bottom of resistor.
Condition fair, corroded and dirty; complete.

References

Events