Accession No

6576

Brief Description

portable potentiometer, Type 44228, by Cambridge Instrument Company Ltd., English, 1963

Origin

England; London

Maker

Cambridge Instrument Company Ltd.

Class

electrical; laboratory apparatus

Earliest Date

1963

Latest Date

1963

Inscription Date

1963

Material

wood; leather; metal; plastic; paper; glass

Dimensions

180mm (depth) x 245mm (height) x 360mm (width)

Special Collection

Provenance

Transferred by an individual at the Department of Engineering, University of Cambridge, Trumpington St, Cambridge, CB2 1PZ, on or before 25/04/2013.

Inscription

‘Cambridge Potentiomenter Type 44228’
‘L.396905’
‘MECHS OF MACHS’ [printed stick-on label]
‘LAB SERIAL NO CA 2732’ [manuscript on sticker]

Description Notes

Portable potentiometer, Type 44228, by Cambridge Instrument Company, English, c. 1964.

Potentiometer, galvanometer and thermometer housed in a wooden case with leather handle for portability. Black plastic on left of base is battery compartment, does not include batteries. A home-made plastic label on the interior of the lid read ‘MECHS OF MACHS’ and a paper one on the surface of the potentiometer reads ‘LAB SERIAL NO CA 2732’.
Box has 4 plastic feet, and another label with the serial number on the top. Leather handle is worn and beginning to crack, white plastic on interior is slightly dirty and metal clasps and fixtures are slightly tarnished.

Includes documentation, including two photocopies of the ‘Portable Potentiometer Instructions for Use’ type No. 44228. One s headed ‘HEAT LAB’, another has had ‘HEAT LAB’ struck through and ‘MECHANICS LAB’ is written. Also included is ‘Certificate of Test for Instrument No. L.396905’; a pamphlet entitled ‘Thermo-Electric Characteristics to British Specification for Cambridge Thermo-Couples’; a diagram of the circuit and of the potentiometer (for use with the instructions).


Condition: good, complete

References

Events