Accession No

2372

Brief Description

vacuum tube for radiation experiments, 1875-1900

Origin

Maker

Class

physics

Earliest Date

1875

Latest Date

1900

Inscription Date

Material

glass; metal (white metal); graphite; wax

Dimensions

length 183mm; diameter 27mm

Special Collection

Provenance

Inscription

Description Notes

Glass cylindrical tube. Two white metal electrodes; one has wire connected to ring against inside of tube; the other terminal consists of a wire attached to a length of metal foil with a square sheet on the end (black-painted on one side), which can touch a piece of graphite connected to the ring. Side-arm evacuation tube has been broken off.

Condition fair; complete.

References

Events