Accession No

2113

Brief Description

induction coil, Ruhmkorff type, 7 inch spark, 1st 1/4 20th century

Origin

England

Maker

Class

electrical

Earliest Date

1900

Latest Date

1925

Inscription Date

Material

wood; plastic (ebonite, and 1 other); metal (brass, white metal); ivory

Dimensions

length 420mm; breadth 170mm; height 140mm

Special Collection

Provenance

Transferred from Institute of Astronomy, University of Cambridge, Cambridge, England, 10/1975.

Inscription

Description Notes

Primary and secondary induction coils mounted on ebonite standards on rough wooden board with ebonite sheath and small capacitor also mounted on board.

Condition fair; incomplete (large capacitor, base, terminals, switch and discharge rods and pillars missing).

References

Events