Accession No

2079

Brief Description

vacuum tube on stand, English, 4/4 19th Century

Origin

Maker

Class

physics

Earliest Date

1875

Latest Date

1900

Inscription Date

Material

glass; metal (white metal, copper, brass); wood; rubber

Dimensions

length 324mm; breadth 142mm; height 210mm

Special Collection

Cavendish collection

Provenance

Transferred from Cavendish Laboratory, University of Cambridge, 1974.

Inscription

Description Notes

Glass vacuum tube with central ovoid chamber. Side arm evacuation tube. White metal cathode ending in disc at centre of chamber. Incandescent wire anode set opposite cathode and almost touching at centre. Each electrode is connected to a copper wire attached to a brass terminals. Terminals mounted on wooden base which is shaped to carry the vacuum tube.

Condition good; complete.

References

Events