Clark experimental coherer radio receiver
date: label: date made
content: c 1904
label: date made
content: ca 1904
name: label: maker
content: Thomas E. Clark Co.
label: maker
content: A. Frederick Collins Co.
notes: label: Description (Brief)
content: Marked: "T. E. Clark Wireless Telegraph Patent" (on sounder & coherer base). Panel board with instruments in a carrying case. Unit consists of a filings coherer with decoherer tapper mechanism and two telegraph sounders arranged on a wooden base. Electromagnets are 1.375" diameter on one sounder and 1" diam. on the other. Three small coils are mounted beneath the baseboard along with the decohering tapper mechanism. According to the donor this unit was used to promote A. Frederick Collins Co. wireless stock. Reference: Franklin F. Wingard.
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.321522
label: accession number
content: 241556
label: catalog number
content: 321522
objectType: label: Object Name
content: radio receiver, coherer
label: Object Name
content: radio receiver
physicalDescription: label: Measurements
content: panel only: 4 1/2 in x 20 1/4 in x 10 1/2 in; 11.43 cm x 51.435 cm x 26.67 cm
label: Measurements
content: overall: 8 in x 21 in x 11 in; 20.32 cm x 53.34 cm x 27.94 cm