Welsh type WT501 "Peanut" triode
date: label: date made
content: ca 1910
notes: label: Description (Brief)
content: A "Welsh Peanut Tube". A brass candelabra bayonet base with two contacts, glass insulator, a red-insulated lead emerging from the base shell, and a green-insulated wire coiled around the neck of the tipped tubular envelope. The red lead attached to one connector on an adapter (missing from this specimen), both ends of the green insulator attached to another connector. No legible makers marks. Distributed by Radio Research Guild, made by Welsh Electric Lamp Corp, Reference: Tyne, "Saga of the Vacuum Tube," page 365.
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from Lewis J. Fisher
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1989.0205.01
label: accession number
content: 1989.0205
label: catalog number
content: 1989.0205.01
objectType: label: Object Name
content: vacuum tube
label: Object Name
content: Triode
physicalDescription: label: Measurements
content: overall: 2 1/4 in x 5/8 in; 5.715 cm x 1.5875 cm