Accession No

4960

Brief Description

universal indicator / galvanometer, Crompton, by Philip Harris Ltd., English, late 20th Century

Origin

England

Maker

Philip Harris Ltd.

Class

electrical

Earliest Date

1980

Latest Date

1997

Inscription Date

Material

plastic (bakelite, synthetic rubber, other); metal (white metal, copper, other)

Dimensions

length 120mm; breadth 150mm; height 90mm

Special Collection

Provenance

Donated on 30 July 1997.

Inscription

on face of dial
‘UNIVERAL INDICATOR’
‘Crompton’
‘PHILIP HARRIS LTD.’

Description Notes

Universal indicator/galvanometer for use with universal adapter and shunts. The shunts extend the limits within which a galvanometer may be used. Allows the comparison of the relative strengths of two different currents.

Dial and indicator incased in clear plastic drum mounted on top of a rubber wedge shaped base. Dial has inscription above, a circular scale with numbers 0 to 15 in intervals of 5. Needle pointer. In top left corner is typed the capacities ‘15-0-75mV’ ‘3-0-15mA’ and ‘5 OHMS’. In the top right corner symbols consisting of a star with the number 2 inside it. On the top of the rubber base are the terminals for attaching the universal adapter. Two metal terminals connected by a plastic bar bearing the inscription ‘ DISCONNECT LEADS BEFORE REMOVING SHUNT’.

Condition good; complete

References

Events