Redmond type 4 "Dynamotor"
date: label: date made
content: ca 1945
name: label: associated user
content: unknown
label: maker
content: A. G. Redmond Co.
notes: label: Description (Brief)
content: Markings: "Redmond Dynamotor / No. 9L23596 Mod. 5004S Type 4 / Temp Rise 40'c. R.P.M. 4200 Duty cont. / Input volts 18 Amps. 3.2. / Output volts [cut off]". A direct current generator with part of the frame is removed so that a student may observe internal operation. This device differs from a motor-generator in that there is a double armature winding. One winding serves for driving the motor, whereas output voltage is taken from the other winding. Input voltage is 18VDC and output is 450VDC. Commutator segments and two pairs of brushes are on each side of the armature.
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.317856
label: catalog number
content: 317856
label: accession number
content: 233317
objectType: label: Object Name
content: Dynamotor
label: Object Name
content: electrical generator
label: Object Name
content: radio component
label: Other Terms
content: Dynamotor; Motors and Generators
physicalDescription: label: Measurements
content: overall: 7 1/2 in x 4 in; 19.05 cm x 10.16 cm