Accession No

2265

Brief Description

Standard Resistor, oil immersion, 1 ohm, by Cambridge Scientific Instrument Company Ltd., English, c.1900

Origin

England; Cambridge

Maker

Cambridge Scientific Instrument Company Ltd.

Class

electrical

Earliest Date

1900

Latest Date

1900

Inscription Date

Material

metal (platinum, silver, brass, copper); stone (mica); glass

Dimensions

height 160mm; breadth 185mm; depth 100mm

Special Collection

Provenance

Inscription

on top: “SCIENTIFIC INSTRUMENT CO. LTD. CAMBRIDGE/ No. 1037”
on block: “B.O.T. 1 OHM / RIGHT AT 16 C”
on top (added): “161”

Description Notes

Platinum-silver coil wound on mica hexagonal frame; glass case to contain insulating oil; conposition top with annular brass flange; hole for thermometer in top; copper rods for electrical connections, supported by composition rectangular blocks. Insulated copper wires soldered to copper rods (added).
Good condition, complete.

References

Events