Accession No

1994

Brief Description

vacuum tube, 1900–1950

Origin

Maker

Class

physics

Earliest Date

1900

Latest Date

1950

Inscription Date

Material

glass; metal (white metal, copper, aluminium); paper

Dimensions

length 111mm; diameter 23mm

Special Collection

Cavendish collection

Provenance

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

Inscription

Description Notes

Vacuum tube with swansneck evacuation tube. Concave metal focussing cathode and metal coil target. Aluminium foil around end of cathode to aid contact.

Condition good; complete.

References

Events