Accession No

3319

Brief Description

moving coil, pointer ammeter, presented to Mr Albert Campbell by the the staff of the National Physical Laboratory on 27th March 1919, by Robert W. Paul, English, 1919

Origin

England; London

Maker

Paul, Robert W.

Class

electrical

Earliest Date

1919

Latest Date

1919

Inscription Date

Material

wood; glass; metal (brass); plastic (ivorine)

Dimensions

length 172mm; breadth 175mm; height 88mm

Special Collection

Provenance

Transferred from Department of Engineering, University of Cambridge, Cambridge, England, 1986.

Inscription

‘No.K.1192
RES. 8.6 OHMS
AT 20 C
ROBT. W. PAUL
LONDON
PATENTED’ (on dial)
‘PRESENTED TO
MR. ALBERT CAMPBELL
BY THE STAFF OF THE N.P.L.
27th. MARCH 1919’ (on ivorine plate below dial (added))

Description Notes

In wooden box; glazed window showing white dial and mirror; scale, 0 to 120 divisions, and labelled ‘3 MICROAMPERES PER DIVISION’; two brass terminals; zero adjustment and clamp controls.

Condition: fair (pivot broken); complete.

References

Events