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History of Science Museum

Radio Valve Type 5Z4G with carton, Britain, Mid 20th Century

Inventory Number 48685


Acknowledgement: © History of Science Museum, University of Oxford, inv.48685

Item type
Object
Provenance
Presented by the Marconi Corporation.
Primary inscriptions
"5Z46" painted on exterior surface of bulb. "7S2 / J5G" painted on lower section of exterior surface of bulb.
Object type
Radio valve
Dimensions
Diameter: 45mm Height: 120mm Weight: 0.05kg
Inventory No
48685
Accession Number
2004-9/262

Description

Full Wave Rectifier Radio Valve (or Tube) Type 5ZEG, in unmatching plain cardboard carton. Glass valve with black plastic? base, eight steel base pins, and one central black plastic? base pin.