transistor contact potential apparatus
date: label: date made
content: ca. 1946
label: date made
content: ca 1946
label: associated date
content: 1947
name: label: associated institution
content: Bell Laboratories
label: maker
content: Bell Laboratories
notes: label: Description (Brief)
content: Electronic device to accompany Walter Brattain's transistor testing apparatus. This appears to be the preamplifier Brattain mentions in his correspondence with the museum. A 30 April 1946 date is stamped inside on one component. Four cords were found inside the unit: a power cord and a preamplifier cord attach to the unit but a 4-pin patch cord and a coax cable do not seem to attach to this unit.
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from Bell Telephone Laboratories, through Julian D. Tebo and Walter H. Brattain.
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 2012.0129.01
label: accession number
content: 2012.0129
label: catalog number
content: 2012.0129.01
objectType: label: Object Name
content: Transistor Developmental Apparatus
label: Object Name
content: transistor tester
physicalDescription: label: Measurements
content: overall: 12 in x 18 1/4 in x 12 3/4 in; 30.48 cm x 46.355 cm x 32.385 cm