Browse Items (30 total)

Maroon leatherette case with gray metal across top. Along top are three frequency ranges, "Marine," "Broadcast" and "Range" with selecting dials. At top are also 2 plugs and a switch for "Phones," "Receiving," "Direction Finding" and "Ant." Also has…

Items from Box 27, Folder 23 of the William P. and Moya Olsen Lear Papers, July 24, 1941. Contains a press release and eight captioned photographs related to William P. Lear's evaluation of German radio equipment taken from a captured Messerschmitt…

Receiver constructed out of a metal case covered in brown and tan tweed leatherette fabric. Brown leather handle at top. Black metal face with red and green Broadcast Beacon tuning with brown plastic dials. Plug for Phones and Ext. Ant. Dataplate at…

Learadio in rectangular brown wood case. Display at top with frequency range 55 - 160 in beige and green, with "Learadio." 2 brown plastic knobs at bottom. At center is a mesh brown fabric with gold thread accents covered speaker.Marks:…

Photograph of an unidentified aircraft fuselage with its side panel removed, showing the Learadio equipment installed in the front and rear cockpits, circa 1940s-1950s. Several of the components are labeled. Caption: "NA-44 / Learadio equipment…

Composite photograph of Learadio panel assembly, showing side and front views, circa 1940s-1950s. Individual components include a fixed antenna tuning unit, trasmitter, automatic direction finder, and control unit.Caption: "Front view / NA-44 /…

Portable radio has mahogany wood case with olive green metal along top. Has face and dials along top. Frequency range has broadcast band, marine band and beacon. Tuning area has broken plastic cover. Top has two knobs and two selectors. Two plugs and…

Items from Box 18, Folder 1 of the William P. and Moya Olsen Lear Papers, circa 1940-1943. Contains a patent application and other documents related to the Radio Automatic Guidance System (Case 31-3) and Loop Antenna System (Can. 8-1), as well as a…

Instruction booklet for the Learadio UT-6 Transmitter, issued April 4, 1940. Ten typed pages.

Photograph of a Lear Developments BC-190-T5 radio transmitter, circa 1940. The verso inscription notes that this transmitter was developed for the U.S. Army Signal Corps and describes the device's components and specifications.Inscription on verso:…