Wireless Specialty / U.S. Navy type IP 501-A radio receiver
date: label: date made
content: ca 1922
name: label: maker
content: Wireless Specialty Apparatus Co.
notes: label: Description (Brief)
content: Marked: "Type IP 501-A Receiver-Amplifier / Serial No. 157 BAA / Wave Length Range: / 300-3000 Meters / Designed by Bureau / of Engineering, U.S. Navy / Manufactured by the / Wireless Specialty Apparatus / Co. for the Radio Corporation / of America." Patented: 1/15/07; 2/18/08; 3/14/11; 1/14/14; 10/22/18; 12/28/19; 8/22/22; 10/6/14; 6/12/15; 1/2/17; 7/2/17; 9/11/17. Patents Pending. The type IP 501A receiver was designed for the reception of either damped or undamped radio signals when using the vacuum tube detector. A crystal detector can be connected for the reception of spark or ICW signals. The receiver is a unit containing RF circuits, vacuum tube detector and two audio stages. This unit has a range of 250-8000 meters and was suitable for ship or shore installations. Terminals are provided for connecting additional inductance to increase the receiving range to 18,000 meters if desired. REF: "Operating Instruction for the IP-501A Receiver" (Clark Collection: CWC 46-1371H).
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.320698
label: accession number
content: 241556
label: catalog number
content: 320698
label: serial number
content: 157BAA
objectType: label: Object Name
content: receiver
label: Object Name
content: radio receiver
physicalDescription: label: Measurements
content: overall: 11 1/2 in x 24 in x 9 in; 29.21 cm x 60.96 cm x 22.86 cm