Accession No

4107

Brief Description

stroboscope, by Cambridge Instrument Company Ltd., England, post-1925

Origin

England

Maker

Cambridge Instrument Company Ltd.

Class

optical

Earliest Date

1925

Latest Date

1960

Inscription Date

Material

metal (cast iron, at least three white metals, copper); plastic (ebonite); rope (cord)

Dimensions

length 500mm; breadth 290mm; height 160mm

Special Collection

Cambridge Instrument Company Collection

Provenance

Donated by the Cambridge Instrument Company.

Inscription

‘Cambridge Instrument CO. LTD. England’ (both lamp holders)

Description Notes

Black-painted rectangular cast iron base, on which a tuning fork is mounted horizontally. At the top end of the fork a rectangular metal base plate is set across the main base, beneath the fork; it carries two cased lamps whose position can be altered and fixed in place by knurled screws; both lamps with converging lens and connections into underside of plate. The end of the plate nearest the lamps carry a pair of ebonite terminals; the other end carries six ebonite terminals; one pair marked ‘4V - and +’; the next one marked ‘GB’; the next part marked ‘HT - and +’; the last one marked ‘PEC’. The tuning fork itself carries two pairs of metal sheets which touch when the fork is vibrating; also a coil set between the two tines of the fork.

Condition fair; complete.

References

Events