Accession No

1987.2

Brief Description

discharge type vacuum tube, 1930

Origin

Maker

Class

physics

Earliest Date

1930

Latest Date

1830

Inscription Date

13-2-1930

Material

glass; metal (white metal, copper); paper

Dimensions

length 202mm; breadth 73mm; depth 19mm

Special Collection

Cavendish collection

Provenance

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

Inscription

‘Helium
No 2
Feb 13/30’ (paper label)

Description Notes

Glass discharge tube with constriction. Two side arms, one with terminal, the other acting as the evacuation tube. White metal and copper terminals.

Condition good; complete.

References

Events