omnigraph
date: label: date made
content: ca 1920
notes: label: Description (Brief)
content: Marked: "The Omnigraph / The Omnigraph Mfg. Co. / 16-22 Hudson St. / N.Y. U.S.A." This machine is designed to transmit Morse code messages automatically at speeds from 10 to 100 words per minute. Five movable message changers are stacked on a spool and actuate a lever contact device that opens and closes the circuit at the desired speed. A spring-wound clock mechanism provides the motive power. The manufacturer provided predetermined Morse code messages or varying alphabet combinations. Reference: William B. Duck Co. Catalog No. 14, 1920, page 193.
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.321300
label: catalog number
content: 321300
label: accession number
content: 241556
objectType: label: Object Name
content: omnigraph
label: Object Name
content: radio transmitter
physicalDescription: label: Measurements
content: overall: 5 1/2 in x 10 5/8 in x 5 1/4 in; 13.97 cm x 26.9875 cm x 13.335 cm