Accession No

2281

Brief Description

Einthoven galvanometer, by Cambridge Instrument Company Ltd., English, 1929

Origin

England; Cambridge

Maker

Cambridge Instrument Company Ltd.

Class

electrical

Earliest Date

1929

Latest Date

1929

Inscription Date

Material

metal (brass, iron, white metal, oxidised brass); glass; plastic (ebonite and one other); hide (leather)

Dimensions

length 455mm; breadth 220mm; height 190mm

Special Collection

Provenance

Transferred from Department of Colloid Science, University of Cambridge, 11/1976.

Inscription

‘Cambridge
Instrument Co. Ltd.,
England.’ (optical unit)

Description Notes

Electromagnet with three brass levelling feet; four brass terminals for magnet mounted on ebonite plate, central two connected by insulated wire. Front carries gap for fibre case (missing) and telescope for reading deflection of wire, and tube for admitting light to the fibre case. Mounted above the telescope and light tube are two further tubes with knurled screws for adjusting the telescope (?).

Condition fair; incomplete (fibre case missing).

References

Events