GE / RCA type UL-1008 oscillation transformer
date: label: date made
content: ca 1922
name: label: maker
content: General Electric Company
label: maker
content: Radio Corporation of America
notes: label: Description (Brief)
content: A radio tuning helix. Marked "Oscillation Transformer / UL 1008 [logos] / Manufactured in the U.S.A. for / Radio Corporation of America / by / General Electric Co. U.S.A." A 25 turn helix for an amateur radio transmitter. One clip. Coil is .375" metal stripping wound in a 6" diameter helix on wooden base with wooden supports. Unit normally designed for use with vacuum tube transmitters, but can be used as an oscillation transformer in spark transmitters, coupling primary and secondary circuits. Reference: RCA - Radio Apparatus for Amateur and Experimental Use, 1922, page 26.
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.321812
label: catalog number
content: 321812
label: accession number
content: 241556
objectType: label: Object Name
content: tuning helix
physicalDescription: label: Measurements
content: overall: 8 in x 9 1/4 in x 6 in; 20.32 cm x 23.495 cm x 15.24 cm