Philco type 27 vacuum triode
date: label: date made
content: ca 1935
name: label: maker
content: Philco
notes: label: Description (Brief)
content: A plastic 5-pin base with mica insulator and mesh grid (dual support wing),S-shaped envelope. Stamped on base: "Philco / Type 27 / 1F / Made in U.S.A."; paper label reads: "Philco / Reg. U.S. Pat. Off."; second paper label reads: "Schmiers' / 1806 - 3rd Avenue / Rock Island, ILL. / R.I. 117 R.I. 118 / Date Sold [blank] / Date Tested ok / Good / Fair / Weak". Reference: https://www.radiomuseum.org/tubes/tube_27.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.RSN80552U18
objectType: label: Object Name
content: triode
label: Other Terms
content: Electron Tube; Electron Tubes
physicalDescription: label: Physical Description
content: composition (overall material)
label: Physical Description
content: glass (overall material)
label: Physical Description
content: metal (overall material)
label: Measurements
content: electron tube: 11 cm x 4.5 cm; 4 5/16 in x 1 3/4 in
label: Measurements
content: overall: 4 1/2 in x 1 3/4 in; 11.43 cm x 4.445 cm