Valve

Object detail

Accession number

1978.1679

Maker

Marconi Instruments Limited

Description

Small glass bulb with point at top. Metal inside, metal base with 4 electrical pins 'A' and 'G' punched on base. Very rare.

Marks

Marconi, Made in the Osram Lamp Works Printed
Marconi Valve / Made in the Osram Lamp works / covered by various patents Printed
R100 approved by Postmaster General type / BBC Printed

Media/Materials

Processed Material/Glass
Processed Material/Metal

Credit Line

Marconi Instruments Limited. Valve, 1978.1679. The Museum of Transport and Technology (MOTAT).

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Production place

England Great Britain British Isles Europe Great Britain United Kingdom

Collection type

Telecommunication Communications Technology

Subject auto tags

Musical instrument Lamp Material property Gas Light fixture Ceiling fixture Event Lighting accessory Transparency Metal

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