Sylvania type 39/44 vacuum pentode
date: label: date made
content: ca 1933
name: label: maker
content: Sylvania Electric Products Inc.
notes: label: Description (Brief)
content: A vacuum pentode for radio frequency / intermediate frequency stage in original box. A 5-pin plastic base with top contact, BT-shaped envelope, mesh grid, mica insulator. Stamped on base: "Sylvania / Made in U.S.A. / [leaf logo] / 2NR / For Replacement Use Only; on envelope: "39 / 44". Warranty information is printed on the inside of the box. Reference: https://www.radiomuseum.org/tubes/tube_44.html.
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: ZZ.RSN79796T34
objectType: label: Object Name
content: Electron Tube
label: Object Name
content: pentode
physicalDescription: label: Measurements
content: tube: 4 1/2 in x 1 1/2 in; 11.43 cm x 3.81 cm
label: Measurements
content: box: 5 in x 1 3/4 in x 1 3/4 in; 12.7 cm x 4.445 cm x 4.445 cm