Amrad model G-3 quenched spark gap
date: label: date made
content: ca 1920
name: label: maker
content: American Radio & Research Corporation
notes: label: Description (Brief)
content: Amrad model G-3 quenched spark gap. Marked: "American Radio and Research Corporation / Sales Office / 21 Park Row, N.Y.C. / Plant: Medford Hillside, Mass. / Type G-3 No. 155." Specimen is an early 24 plate quenched spark gap with adjustable plate separation. The 4" square plates are badly bent but can be repaired. Original sale price: $13.50. Reference: "Radio Amateur News," June 1920, page 709.
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.321673
label: catalog number
content: 321672
label: accession number
content: 241556
objectType: label: Object Name
content: spark gap
physicalDescription: label: Measurements
content: overall: 7 1/2 in x 9 1/4 in x 5 in; 19.05 cm x 23.495 cm x 12.7 cm