Thordarson type T-2 spark transformer
date: label: date made
content: ca 1920
name: label: maker
content: Thordarson Electric Manufacturing Company
notes: label: Description (Brief)
content: Thordarson type T-2 spark transformer, plate reads: "Electrical Apparatus / Type: T-2 / Amp: 3-.12 / No.: 1085 / Cycle: 60 / Volts: 110 / Thordarson Electric Mfg. Co. / Chicago, Illinois". Transformer employed in wireless applications. Manufacturer claimed an efficiency of 92%. Magnetic shunt control protects unit from undue current surges. No impedance or choke coil is necessary for use with this specimen. Reference: similar to 1 kw type R transformer the 1920 William B. Duck Co. catalog #14. page 11.
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.321142
label: catalog number
content: 321142
label: accession number
content: 241556
objectType: label: Object Name
content: transformer
physicalDescription: label: Measurements
content: overall: 14 in x 10 3/4 in x 7 in; 35.56 cm x 27.305 cm x 17.78 cm