Accession No

6693.2

Brief Description

Geissler tube, C20th

Origin

Maker

Class

physics; demonstration

Earliest Date

1870

Latest Date

1950

Inscription Date

Material

glass; metal

Dimensions

168mm (width) x 35mm (diameter, including glass nub)

Special Collection

Michael J. Clark Bequest

Provenance

Inscription

Description Notes

Geissler tube, C20th

An evacuated glass tube with two electrodes: small hooks on the extremes of either end of the tube connected to think metal rods inside the tube. The glass tube is twirled a coiled S-shape between the electrodes. The coil at one end is tinted yellow (may be due to use rather than original).

Condition: good

References

Events