Accession No

4507

Brief Description

revolving optical galvanometer, by Gambrell Brothers and Company Ltd., English, 1920 (c)

Origin

England; London

Maker

Gambrell Brothers and Company Ltd.

Class

electrical

Earliest Date

1920

Latest Date

1920

Inscription Date

Material

wood; metal (brass); plastic; ebonite

Dimensions

length 250mm; breadth 175mm; height 150mm

Special Collection

Provenance

Gifted by the Aerodynamics Laboratory, Department of Engineering, University of Cambridge.

Inscription

‘GAMBRELL BROS. & CO. LTD
LONDON’ (lid)

Description Notes

Wooden box with hinged lid and fasteners. Five ebonite terminals at bottom right of front of box. Clamp/release lever on left hand end. Scale on right hand end divided [-0.3] - [14.5], numbered by 1, graduated by 0.1.
Inside the box are connections from the outer terminals to the parts of the galvanometer. The fifth outer terminal is connected to a reel of wire. A sloped piece of wood holds the apparatus for the projection of the spot of light.
A red box contains seven reels of suspension wire for use with the galvanometer.

Condition good.

References

Events