Accession No

1997

Brief Description

vacuum tube, 1900-1950

Origin

Maker

Class

physics

Earliest Date

1900

Latest Date

1950

Inscription Date

Material

glass; metal (brass, white metal)

Dimensions

length 183mm; breadth 26mm; depth 19mm

Special Collection

Cavendish collection

Provenance

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

Inscription

‘SIEMENS
MADE IN ENGLAND
BF/6’ (end cap)

Description Notes

Vacuum tube with constriction contained inside jacket. White metal coiled terminals with brass caps to aid electrical contact.

Condition good; complete.

References

Events