Radio Shack infrared LED emitter and detector set in original package
date: label: date made
content: ca 1975
notes: 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: 2021.0040.10
label: catalog number
content: 2021.0040.10
label: accession number
content: 2021.0040
objectType: label: Object Name
content: light emitting diode
physicalDescription: label: Measurements
content: package: 5 1/2 in x 2 3/4 in x 1/2 in; 13.97 cm x 6.985 cm x 1.27 cm
label: Measurements
content: each led: 1 1/2 in x 1/4 in; 3.81 cm x .635 cm