Accession No

2020

Brief Description

valve, 20th C

Origin

Maker

Class

physics

Earliest Date

1900

Latest Date

1960

Inscription Date

Material

glass; wood; metal (copper, at least 3 white metals)

Dimensions

length 459mm; breadth 200mm; height 215mm

Special Collection

Cavendish collection

Provenance

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

Inscription

‘“C” ↑
VU504
16.5-40mA
10E/150
SERIAL No. 22210’ (etched into glass)

Description Notes

Wooden base supports two painted metal standards which carry the valve. A piece of card on the base is marked ‘HIGH VOLTAGE DIODE RECTIFIER’. Valve consists of ovoid central chamber with two arms, both ending in metal caps, one with a screwfit fitting. Metal and glass operational parts of valve set down centre of vacuum tube.

Condition fair (very dusty); complete.

References

Events