Valve

Object detail

Accession number

1978.1599

Maker

National Union Radio Corporation

Description

Graduated glass bulb with metal cap at top. Metal inside. Black base with central base pin surrounded by eight metal pins.

Marks

National/ Union/ ER Made in USA / Long life tube complete/ renewal service for all radios Printed

Media/Materials

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

Credit Line

National Union Radio Corporation. Valve, 1978.1599. The Museum of Transport and Technology (MOTAT).

Philadelphia Pennsylvania United States of America North America Americas

Telecommunication Communications Technology

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