Accession No

3314

Brief Description

Moullin condenser or capacitor, by Cambridge Instrument Company Ltd., English, 1930

Origin

England; Cambridge

Maker

Cambridge Instrument Company Ltd.

Class

electrical

Earliest Date

1930

Latest Date

1930

Inscription Date

Material

metal (aluminium, brass); plastic (ebonite)

Dimensions

height 355mm; diameter 275mm

Special Collection

Provenance

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

Inscription

‘MOULLIN CONDENSOR
PATENT No. 325802
CAMBRIDGE INSTRUMENT CO. LTD. ENGLAND (with logo)
C 153122’ (on top)
‘Prof. Moullin
Eng. Labs.
Elect. Section’ (on CIC label attached)

Description Notes

Cast aluminium case, painted black; ebonite circular top with scale, covering an arc of approximately 180 degrees, marked from 0 to 18.2 picofarads; central brass cylindrical post houses rotating shaft; ebonite pointer with handle; spring loaded, push button connecting switch at top; at front of base of case, two brass terminals (one connected to case) mounted on ebonite plate; on left and right are two switches for adding in extra capacitors; at rear of case, halfway up, is a brass clamping screw.

Condition: good; complete.

References

Events