Accession No

2051

Brief Description

X-ray tube, by Müller, 1/4 20th Century

Origin

Maker

Müller

Class

physics

Earliest Date

1900

Latest Date

1925

Inscription Date

Material

glass; metal (two white metals, copper?); stone (mica); wood; paper; cloth (felt)

Dimensions

length 480mm; breadth 220mm; height 360mm

Special Collection

Cavendish collection

Provenance

Transferred from Cavendish Laboratory, University of Cambridge, 09/1974.

Inscription

‘Original Muller X Ray Tube
[trade mark of windmill]
No 82705’ (etched into glass)
‘Härtegrad 5-6
Walterscala’ (paper label on tube)

Description Notes

Spherical glass chamber with 4 side arms. 2 opposing side-arms, one carrying a white metal rod electrode and the other carrying a white metal elctrode with concave disc at inner end. Both these electrodes connect to external metal caps. Perpendicular to these arms, at the top of the chamber, is a glass cylinder on a short glass arm. In the cylinder are 2 white metal elctrodes each with a series of mica disc at their inner ends. External metal caps with stiff metal wires (one wire missing) connect to these electrodes. A further arm has section extending into chamber terminating in copper (?) target. A spherical bulb at the upper end of this arm is topped by a metal cap, with spring connecting it to the cap on the rod electrode. 2 labels on one side-arm, one marked ‘1’, the other with details about the tube’. The whole is mounted, by the 2 opposing side-arms, to a contemporary wooden stand, with felt-lined grippers.

Condition good; complete (?)

References

Events