Mu-Rad type T-11 radio frequency transformer
date: label: date made
content: ca 1925
notes: label: Description (Brief)
content: Mu-Rad type T-11 radio frequency transformer in original box. Marked: "Radio Frequency Transformer / Type T-11 / 160-500 Meters / Mu-Rad Laboratories / Ashbury Park, New Jersey". Small radio frequency coil encased in circular bakelite unit. Four binding posts for connection to circuit. Coil posts labeled: P (plate), G (grid), F (filament), + (B+ battery). Mu-Rad Labs were directed by Albert Blatterman, an electrical engineer who was involved in Patent Office interferences involving the AC power supply.
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from Franklin Wingard
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.321797.01
label: accession number
content: 241556
label: catalog number
content: 321797.01
objectType: label: Object Name
content: transformer
physicalDescription: label: Measurements
content: box: 2 5/8 in x 3 1/4 in x 1 3/4 in; 6.6675 cm x 8.255 cm x 4.445 cm
label: Measurements
content: transformer: 1 1/8 in x 1 5/8 in; 2.8575 cm x 4.1275 cm