Accession No

4252

Brief Description

Standard resistor, 1 ohm, by Cambridge Scientific Instrument Company Ltd., English, c.1903

Origin

England; Cambridge

Maker

Cambridge Scientific Instrument Company Ltd.

Class

electrical

Earliest Date

1903

Latest Date

1903

Inscription Date

Material

plastic (ebonite); metal (copper, brass, wire); wood

Dimensions

length 128mm; breadth 60mm; height 99mm

Special Collection

Cambridge Instrument Company Collection

Provenance

Donated by the Cambridge Instrument Company.

Inscription

on top of case: “CAMBRIDGE / SCIENTIFIC INSTRUMENT CO. / ENGLAND / No. 2133. / 1 ohm”
on base (added): “305”

Description Notes

Rectangular ebonite base; pair of parallel copper rods on either side, one pair ending in brass terminals; wire wound on wooden bobbin fixed to top of base; cylindrical brass cover, with ventilation holes, held in place wit central bolt and knurled nut.

References

Events