Home-made radio wave meter
date: label: date made
content: ca 1930
notes: label: Description (Brief)
content: Unmarked radio wave meter. Unit is a home-made wave meter designed to determine the operating frequency of an amateur radio transmitter. A variable capacitor and resonance indicating lamp are mounted in the box. Binding posts on the panel permit insertion of four coils, depending on the desired frequency band. The lamp lights when the transmitter frequency and the coil capacitor combination are in resonance. Possibly made by the donor.
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.321079
label: catalog number
content: 321079
label: accession number
content: 241556
objectType: label: Object Name
content: wave meter
label: Object Name
content: wavemeter
physicalDescription: label: Measurements
content: overall: 5 1/2 in x 10 7/8 in x 8 3/4 in; 13.97 cm x 27.6225 cm x 22.225 cm
label: Measurements
content: lamp meter unit only: 2 5/8 in x 6 in x 4 3/4 in; 6.6675 cm x 15.24 cm x 12.065 cm