Accession No

2060 (?)

Brief Description

vacuum tube, 1/2 20th C

Origin

Maker

Class

physics

Earliest Date

1900

Latest Date

1950

Inscription Date

Material

glass; metal (brass, white metal)

Dimensions

height 286mm; breadth 95mm; depth 155mm

Special Collection

Provenance

Inscription

Description Notes

Spherical glass chamber with four side-arms. Three of the side-arms contain short white metal rod electrodes; the fourth contains a concave disc cathode. Swansneck side arm from one of the electrode tubes acts as evacuation tube. Brass caps on electrodes to aid electrical connection.

Condition good; complete.

References

Events