Power supply for Freed-Eisemann radio receiver from Lowell & Dunmore case
date: label: date made
content: c 1924
label: date made
content: ca. 1924
label: date made
content: ca 1924
name: label: associated person
content: Lowell, Percival D.
label: associated person
content: Dunmore, Francis W.
label: maker
content: Wood Miles and Company
label: maker
content: Wood Miles and Company
label: maker
content: American Transformer Co.
notes: label: Description (Brief)
content: Rectifier for Freed-Eisemann set for alternating current power. Lowell & Dunmore patent case. Marked: (1) Plaintiffs Exhibit No. 28 (2) In Supreme Court of U.S. Oct. term, 1932 (3) Supreme Court of the U.S. Oct. Term, 1935. Plaintiffs Respondents Exhibit No. 28 (4) In the U.S. Pat. Office. Interference Nos. 15204-51702-53153-53154-53155. Lowell & Dunmore Ex. No. 36. (5) U.S. District Court. District of Delaware Nos. 663-664-665. Plaintiffs Exhibit "B-1" for Identification. Unit consists of a power transformer manufactured by the American Transformer Co. of Newark, N.J., a 201A rectifier tube (grid & plate tied), and associated filter choke and condenser. Case is of wooden construction. Power supply was designed by P.D. Lowell & F.W. Dunmore to furnish current to a Freed-Eisemann neutrodyne receiver, and was demonstrated to Joseph D. R. Freed in June, 1924. Owing to patent complications the Freed-Eisemann Co. was not immediately interested in production. Reference: "U.S. 4th Circuit court of Appeals Transcript Record", Vol. I, page 145; Vol II., page 255.
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from John B. Brady, thru Mrs. John B. Brady
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.321930
label: catalog number
content: 321930
label: accession number
content: 245709
objectType: label: Object Name
content: Power Supply
label: Object Name
content: rectifier
label: Object Name
content: power supply
label: Object Type
content: power supply
physicalDescription: label: Measurements
content: overall: 9 in x 7 in x 7 in; 22.86 cm x 17.78 cm x 17.78 cm