Welsh type WT501 "Peanut" triode
date: label: date made
content: ca 1910
notes: label: Description (Brief)
content: A "Welsh Peanut Tube" in a 4-pin (short) socket adapter. 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 is attached to one connector on the adapter, both ends of the green insulator are attached to the other connector. Stamped on shell: "Welsh / W. T. 501". No makers markings on adapter. The unit comes with an original box and an instruction sheet. All are packed in a mailing box with an address label from Radio Research Guild, 9-15 Clinton St., Newark, NJ, addressed to [label torn] P. Haines, M.D., 9th St., Ocean City NJ, post marked January 2 [stamps torn]. The box has a 1909 patent date for The Mason Box Co., Attleboro Falls, Mass. Made by Welsh Electric Lamp Corp, sold by Radio Research Guild, priced $2.00 for entire unit, 40 cents for the socket only, 75 cents for the adapter only. 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 Franklin Wingard
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.321229
label: catalog number
content: 321229
label: accession number
content: 241556
objectType: label: Object Name
content: triode
label: Object Name
content: vacuum tube
label: Other Terms
content: Electron Tube; Electron Tubes
physicalDescription: label: Physical Description
content: paper (?? material)
label: Measurements
content: tube in socket: 3 3/4 in x 1 3/8 in; 9.525 cm x 3.4925 cm
label: Measurements
content: tube only (with lead): 2 1/2 in x 7/8 in x 1/2 in; 6.35 cm x 2.2225 cm x 1.27 cm
label: Measurements
content: tube box: 2 3/4 in x 1 1/4 in x 1 1/4 in; 6.985 cm x 3.175 cm x 3.175 cm
label: Measurements
content: mailing box: 3 in x 4 1/2 in x 1 5/8 in; 7.62 cm x 11.43 cm x 4.1275 cm