Valve

Object detail

Accession number

1978.1581

Maker

National Union Radio Corporation

Description

black bakelite tube with graduated top with metal cap. On base is a central bakelite pin with 7 metal surrounding it. There is one hole also. Metal clip around base.

Marks

National/ Union/ Made in USA/ A Printed

Media/Materials

Processed Material/Metal
Processed Material/Synthetic/Plastic/Bakelite

Credit Line

National Union Radio Corporation. Valve, 1978.1581. The Museum of Transport and Technology (MOTAT).

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Production place

Philadelphia Pennsylvania United States of America North America Americas

Collection type

Telecommunication Communications Technology

Subject auto tags

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