Accession No

2063

Brief Description

rectifier in the form of a vacuum tube, 1/4 20th Century

Origin

Maker

Class

physics

Earliest Date

1900

Latest Date

1925

Inscription Date

Material

glass; metal (copper, at least two types of white metal); wood (cork)

Dimensions

length 425mm; breadth 142mm; height 190mm

Special Collection

Cavendish collection

Provenance

Transferred from Cavendish Laboratory, University of Cambridge, 1974.

Inscription

Description Notes

Glass vacuum tube with central chamber and opposing tubes containing electrodes. Cathode with white metal concave disc. Anode with white metal spiral which sits in main chamber. Cathode tube has two side arm evacuation tubes. Metal caps to aid electrical connection to electrodes.

Condition fair; complete.

References

Events