Accession No

4376

Brief Description

Electrically-maintained tuning fork, by Robert Fulcher, circa 1879

Origin

Cambridge; England

Maker

Robert Fulcher

Class

electrical; sound

Earliest Date

1879

Latest Date

1879

Inscription Date

Material

wood; metal (platinum, other, mercury, brass); glass

Dimensions

length 713mm; breadth 164mm;height 145mm

Special Collection

Cambridge Instrument Company Collection

Provenance

Donated by the Cambridge Instrument Company.

Inscription

‘ROBERT FULCHER
CAMBRIDGE’ (on brass plate on base)

Description Notes

Electrically maintained tuning fork, by Robert Fulcher, circa 1879.

Black wooden base; tuning fork supported horizontally by its shaft on wooden block; electromagnet supported between the tines of the fork on second wooden block; platinum wire fixed to one tine of fork extends downward to surface of mercury held in glass tube supported on a brass stand; Du Bois-Reymond induction coil with secondary coil sliding on wooden track.

Condition: fine; complete (some wiring missing, no mercury present).

References

Events