Acme model 250 spark transformer
date: label: date made
content: ca 1922
name: label: maker
content: Acme Apparatus Company
notes: label: Description (Brief)
content: Marked: "Acme - 250 / 110 volts 60 cycles / Acme Apparatus Co. / Cambridge, Mass." A spark transformer with two coil construction on rectangular laminated core. Unit employed in early amateur radio spark transmitters. One coil is loose. Two binding posts on top, two on side panel.
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.321524
label: accession number
content: 241556
label: catalog number
content: 321524
objectType: label: Object Name
content: transformer
physicalDescription: label: Measurements
content: transformer: 9 1/2 in x 7 1/4 in x 4 in; 24.13 cm x 18.415 cm x 10.16 cm
label: Measurements
content: transformer: 9 1/2 in x 7 1/4 in x 4 in; 24.13 cm x 18.415 cm x 10.16 cm