Telefunken type RE11 vacuum triode
date: label: date made
content: 1919
name: label: maker
content: Telefunken
notes: label: Description (Brief)
content: Marked on envelope: "Telefunken D.R.P. / type RE [11?] 81571 16"; paper label: "Gepruft: 9.12.19 [Pritzimg?] / In Betrieb. / Unbrauchbar", stamped "U 7". A metal 4-pin base with plastic insulator. Horizontally-mounted copper cylinder collector with axially-mounted copper coil. Flat press. Tipped T-shaped envelope. Appears to be a RE 11 but slightly shorter than EM.315569. Unit packed in a small box (unmarked) with an AEG ballast tube. References: Tyne, "Saga of the Vacuum Tube," page 439, and https://www.radiomuseum.org/tubes/tube_re11.html. See ballast tube, EM.321066b, also stored in this container.
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.321066A
label: catalog number
content: 321066A
label: accession number
content: 241556
objectType: label: Object Name
content: triode
label: Object Name
content: vacuum tube
physicalDescription: label: Physical Description
content: cardboard (box material)
label: Measurements
content: tube: 2 3/4 in x 1 1/4 in; 6.985 cm x 3.175 cm
label: Measurements
content: box: 1 3/4 in x 3 1/4 in x 2 3/4 in; 4.445 cm x 8.255 cm x 6.985 cm