Accession No

3356

Brief Description

Suspended coil AC-DC Ammeter, Siemens electrodynamometer type; range 60 to 200 amperes; Siemens Bros. & Co.; dec.1890

Origin

Maker

Siemens Bros & Co

Class

electrical

Earliest Date

1890

Latest Date

1890

Inscription Date

Material

Metal (mercury,brass); plastic (ebonite); paper; wood

Dimensions

height 400mm; breadth 206mm; depth 183mm

Special Collection

Provenance

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

Inscription

on label cover: “Am-meter. Instr. No. 206 / Range 60-200 Amperes. / Constants... / Makers No. 4275”
on dial: “SIEMENS BROS. & CO. / LONDON”

Description Notes

Similar to Wh: 3355, but designed for larger currents; mechanism for oil damping of movable coil. Paper label on cover legible.

References

Events