GE experimental "lighthouse" tube
date: label: date made
content: ca 1942
name: label: maker
content: General Electric Laboratory
notes: label: Description (Brief)
content: A 6-pin plastic base with center post, steel shell, top contact, central ring. Donor note: "An early sample of [a so-called] lighthouse tube built about 1942 by J. E. Beggs. This type of tube was the first use of the disk-seal principle originated by E. D. McArthur. Used extensively in certain Western Electric radar receivers in World War II."
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from General Electric Research Laboratory, thru W. C. White and J. R. Morgan
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.315617
label: catalog number
content: 315617
label: accession number
content: 220105
label: collector/donor number
content: 6312
objectType: label: Object Name
content: Electron Tube, Triode
label: Object Name
content: triode
label: Other Terms
content: Electron Tube, Triode; Electron Tubes
physicalDescription: label: Measurements
content: overall: 2 1/4 in x 1 1/4 in; 5.715 cm x 3.175 cm