Accession No

4251

Brief Description

resistance box, by Cambridge and Paul Instrument Company Ltd., English, 1920

Origin

England; Cambridge

Maker

Cambridge and Paul Instrument Company Ltd.

Class

electrical

Earliest Date

1920

Latest Date

1920

Inscription Date

Material

wood; plastic (ebonite); metal (brass)

Dimensions

length 322mm; breadth 177mm; height 280mm

Special Collection

Cambridge Instrument Company Collection

Provenance

Donated by the Cambridge Instrument Company.

Inscription

‘THE CAMBRIDGE AND PAUL INSTRUMENT CO. LTD. ENGLAND
No. C 594
MANGANIN OHMS
TO CARRY 0.1 AMPS’ (on top)

Description Notes

Rectangular wooden box with ebonite top; ventilation holes in four sides of box; two brass terminals; brass blocks with fifteen plug receptors (including one marked ‘INF’); brass and ebonite plugs; coils wound on brass formers, suspended on underside of top plate.

Condition: good; incomplete (four plugs missing).

References

Events