Accession No

2076

Brief Description

vacuum tube, 1/4 20th C

Origin

Maker

Class

physics

Earliest Date

1900

Latest Date

1925

Inscription Date

Material

glass; metal (copper, platinised metal)

Dimensions

length 340mm; breadth 80mm; height 107mm

Special Collection

Cavendish collection

Provenance

Transferred from Cavendish Laboratory, University of Cambridge, 1974.

Inscription

Description Notes

Demonstration/experimental vacuum tube with central spherical cavity. Top tube leads to side arm evacuation tube with three evacuation tubes and regulator bulb (possibly mercury regulator). Glass and metal filament ending in two parallel platinised discs.

Condition fair; complete.

References

Events