Accession No

1996.2


Brief Description

vacuum tube, discharge type, 1/2 20th C


Origin


Maker


Class

physics


Earliest Date

1900


Latest Date

1950


Inscription Date


Material

glass; metal (white metal)


Dimensions

length 279mm; breadth 58mm; depth 27mm


Special Collection

Cavendish collection


Provenance

Transferred from the Cavendish Laboratory, University of Cambridge, in 1974.


Inscription


Description Notes

Glass vacuum tube with long swan’s neck evacuation tube; narrow tube down centre of main shaft. Side arm with one terminal. White metal terminals. Tube is silvered from extensive use.

Condition good; complete.


References


Events


FM:44999

Images (Click to view full size):