Accession No

1583

Brief Description

crookes mineralogical tube or discharge tube, 1900-1905 (c)

Origin

Maker

Class

physics

Earliest Date

1900

Latest Date

1905

Inscription Date

Material

glass; stone (magnesium aluminate?); metal (brass, white metal)

Dimensions

length 255mm; breadth 65mm; maximum diameter 55mm

Special Collection

Provenance

Donated.

Inscription

Description Notes

Glass vacuum tube with long extension at one end. Inside a narrow tube is surmounted by a bulb with five protrusions holding pink crystals (possibly magnesium aluminate), as the target. Side arm with one terminal below target. Other terminal above target ending in white metal disc.

Condition good; complete.

References

Events