radio transmitting tuning coil
date: label: date made
content: ca 1920
notes: label: Description (Brief)
content: Marked: "L4T" on frame, "D 5-T" on movable clips. Coil turn markers at 5, 10, 15, 20. Specimen is a final tuning tank or antenna coil from an amateur radio transmitter and consists of 22 turns of 1/4" strip-type sheeting wound between bakelite or hard rubber frame rod insulators. One movable clip can tap the coil at any section. Coil turns are numbered by 5s on one frame support. Two additional top clips are affixed to unit for connection to external circuit. Two angle pins provide a base for mounting on chassis.
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.321220
label: catalog number
content: 321220
label: accession number
content: 241556
objectType: label: Object Name
content: tuning coil
physicalDescription: label: Measurements
content: overall: 8 7/8 in x 7 in x 8 in; 22.5425 cm x 17.78 cm x 20.32 cm