Accession No

4193

Brief Description

moving coil, pointer galvanometer, Paul's patent, by R. W. Paul, English, 1906 (c)

Origin

England; London

Maker

Paul, Robert W.

Class

electrical

Earliest Date

1906

Latest Date

1906

Inscription Date

Material

metal (brass); plastic (ebonite); glass; paper

Dimensions

breadth 115mm; depth 110mm; height 52mm

Special Collection

Cambridge Instrument Company Collection

Provenance

Donated by the Cambridge Instrument Company.

Inscription

‘R.W.PAUL LONDON
No. 70
PAUL’S PATENT’ (on dial)
‘TR 217’ (on base)

Description Notes

Cylindrical brass case on circular ebonite base; two brass terminals; glazed top showing permanent magnet, pivoted coil, mirror and white paper dial; linear scale, 0 to -10 and +100 divisions and non-linear scale, labelled ‘MEGOHMS AT 100 VOLTS’; pin projecting from base clamps when instrument is lifted.

Condition: poor (pivot broken, dial torn, case corroded); complete.

References

Events