Artificial Ear
notes: label: Description
content: Stuart Ballatine (1897-1944) was a radio engineer who worked for several firms before establishing his own laboratory in New Jersey. He designed this Model 505 Artificial Ear in order to measure the efficiency and frequency response characteristics of telephone receivers and hearing aids. The Boontown Laboratories donated it to the Smithsonian in 1965.
label: Location
content: Currently not on view
setName: label: See more items in
content: Medicine and Science: Medicine
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: MG.M-11137
label: catalog number
content: M-11137
label: accession number
content: 256739
objectType: label: Object Name
content: hearing aids
label: Other Terms
content: Medicine
physicalDescription: label: Measurements
content: overall: 4 in x 3 1/2 in; 10.16 cm x 8.89 cm