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History of Science Museum

Brimar Radio Valve Type 50CD6G With Carton, by Brimar, English, Mid 20th Century

Inventory Number 34364


Acknowledgement: © History of Science Museum, University of Oxford, inv.34364

Item type
Object
Provenance
Presented by the Marconi Corporation.
Primary inscriptions
"50CD6 / G" on exterior surface of bulb. "BRIMAR / B.V.A. / MADE IN ENGLAND" etched on valve base.
Object type
Radio valve
Dimensions
Diameter: 50mm Height: 145mm
Inventory No
34364
Accession Number
2004-9/253

Description

Heater Beam Tetrode Radio Valve (or Tube) Type 50CD6G, in red, yellow, white and black printed cardboard carton - 'Brimar Radio Valve'. Glass valve with single steel top cap, black plastic? base, seven steel base pins, and one central black plastic? base pin. Possibly three steel pins missing. With BVA (British Radio Valve Manufacturers Association) logo stamp on valve apron.