Valve
Maker and role
Marconi Instruments Limited, Manufacturer
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Object detail
Accession number
1978.1780
Description
Large, glass bulb with metal parts and filaments throughout. Glass sphere-shaped with small cylinders on each end.
Marks
MT9L / 3541 / Z Etched
Marro Maker's Mark
Marro Maker's Mark
Media/Materials
Credit Line
Marconi Instruments Limited. Valve, 1978.1780. The Museum of Transport and Technology (MOTAT).
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