Accession No

1981

Brief Description

vacuum tube, 1900–1950

Origin

Maker

Class

physics

Earliest Date

1900

Latest Date

1950

Inscription Date

Material

glass; metal (white metal)

Dimensions

length 195mm; breadth 80mm; height 52mm

Special Collection

Cavendish collection

Provenance

Transferred from the Cavendish Laboratory, University of Cambridge, in 1974.

Inscription

Description Notes

Glass vacuum tube with spherical chamber and long evacuation tube. Two diametrical electrodes.

Condition good; complete.

References

Events

Description
Vacuum tubes contain one or a combination of the following: rarefied (thinned) gasses such as neon or argon, conductive liquids or minerals. When an electrical charge is passed through the tube different effects are created.

FM:44961