Accession No

3252

Brief Description

moving coil, pointer ammeter, Weston Elec. Inst. Co., 1933

Origin

Newark; N.J.; U.S.A.

Maker

Weston Electric Instrument Co. Ltd

Class

electrical

Earliest Date

1933

Latest Date

Inscription Date

Material

metal; plastic (ebonite, other); paper

Dimensions

length 168mm; breadth 150mm; height 81mm

Special Collection

Provenance

Transferred from Institute of Astronomy, University of Cambridge, Cambridge, England, 1985. Cambridge University Observatories.

Inscription

‘USE WITH EXTERNAL 100 MV. SHUNT
WESTON
DIRECT
CURRENT
AMMETER
39508’ (on dial)
‘WESTON ELECTRICAL INSTRUMENT CORP.
MODEL 1 No. A39508
NEWARK, N.J., U.S.A.’ (on metal plate below dial)

Description Notes

Black metal and plastic case; two ebonite covered terminals, one marked ‘+’; glazed window showing mirror and white dial; hand-printed scale, 0 to 1.5 divisions; circular window below dial showing pivoted coil. Paper label on bottom, dated ‘6 JAN. 193(?)’. With paper specification certificate, dated ‘January 5th 1933’.

Condition: good; incomplete (four screws (and feet ?) holding bottom to case missing).

References

Events