U.S. Army Signal Corps / Wireless Specialty model BC-144 radio receiver
date: label: date made
content: ca 1928
name: label: maker
content: Wireless Specialty Apparatus Co.
notes: label: Description (Brief)
content: Marked: "Signal Corps U.S. Army / Radio Receiver Type BC-144 / Used with Radio Tel & Tel Set / SCR-162 / Designed at Radio Laboratories / Fort Monmouth, New Jersey / Order No. W457-SC-728 / Date: Mar. 28, 1928 Serial No. 33 / Made by / Wireless Specialty Apparatus Co. / Boston, Mass." This unit is a regenerative detector with one RF stage and two stages of audio. A schematic sheet is glued to inside rear panel. Front panel controls include a multi-point switch for antenna inductance with is variable from 600-1300 KC. A tuning capacitor has a panel scale also from 600-1300 KC. Other panel controls include a tickler function, and a filament rheostat. The filament ammeter measures current to 0.350 amps. Binding posts are available for antenna, counterpose, filament & plate voltage, telephones and stage switching. This receiver appears to use small triodes of the 215-A type.
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.320730
label: catalog number
content: 320730
label: accession number
content: 241556
objectType: label: Object Name
content: radio receiver
physicalDescription: label: Measurements
content: overall: 9 1/2 in x 16 1/4 in x 6 3/4 in; 24.13 cm x 41.275 cm x 17.145 cm