Japanese type 30DM vacuum tube
notes: label: Description (Brief)
content: No base. Three insulated lead wires emerge from one end, one stranded wire emerges from the other. Tipless T-shaped envelope. Vertically-mounted rectangular element. Stamped on envelope: "[Japanese character] / 30DM". Paper label includes Japanese characters and "C31383".
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from J. Vanderhoof
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.321409.2
label: catalog number
content: 321409.2
label: accession number
content: 242072
objectType: label: Object Name
content: electron tube
label: Object Name
content: vacuum tube
label: Other Terms
content: Electron Tube; Electron Tubes
physicalDescription: label: Measurements
content: overall: 2 5/8 in x 3/4 in; 6.6675 cm x 1.905 cm