H. J. Round's "soft" radio receiving tube
date: label: date made
content: ca 1913
label: date made
content: ca. 1913
name: label: maker
content: Round, Henry Joseph
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 the Science Museum (London), thru G. R. M. Garatt
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.318013
label: catalog number
content: 318013
label: accession number
content: 232228
objectType: label: Object Name
content: Electron Tube
label: Object Name
content: vacuum tube