Variocoupler radio inductance
date: label: date made
content: ca 1918
notes: label: Description (Brief)
content: Variocoupler radio inductance, possibly homemade. Hard rubber baseplate on which is mounted two shellacked coils set side by side with a barrel coil in the middle. Barrel coil has a wooden core and is wound with two coils of wire set side by side, and shellacked. Brass fittings. A large plastic knob is on the opposite side of the baseplate and turns the barrel coil within the larger fixed coils. Two wire clips are stamped: "Fahnestock / Pat.Feb26,07."
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from Susan Horle
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.314112
label: catalog number
content: 314112
label: accession number
content: 195337
objectType: label: Object Name
content: Inductance, Variable
label: Object Name
content: inductance
label: Other Terms
content: Inductance, Variable; Components; Radio and Television; Radio and Television
physicalDescription: label: Measurements
content: overall: 5 1/4 in x 3 in x 3 1/2 in; 13.335 cm x 7.62 cm x 8.89 cm