U.S. Army Signal Corps / Ken-Rad type 307-A / VT225 vacuum pentode in box
date: label: date made
content: ca 1942
name: label: maker
content: Ken-Rad Tube and Lamp Corporation
notes: label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from John B. Brady, thru Mrs. John B. Brady
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.321944
label: catalog number
content: 321944
label: accession number
content: 245709
objectType: label: Object Name
content: pentode
label: Object Name
content: vacuum tube
label: Object Name
content: electron tube
label: Other Terms
content: Electron Tube; Electron Tubes
physicalDescription: label: Physical Description
content: paper (box material)
label: Measurements
content: overall: 6 in x 2 in; 15.24 cm x 5.08 cm