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…
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…
Items from Box 4, Folder 3 of the William P. and Moya Olsen Lear Papers, circa 1937-1938. Contains an advertisement for the Learadio Compass, an advertisement for the Learadio AMRL-1 Marine Radio Direction Finder, and a brochure for Learadio…
Items from Box 4, Folder 6 of the William P. and Moya Olsen Lear Papers, September to October 1939. Folder contains assorted items related to the Learadio Airport Localizer (L-P-2), including summaries, correspondence, diagrams, sketches, a clipping,…
Pamphlet about Learadio aircraft radio equipment, circa 1930s. Contains technical specifications and images of various models of transmitters, receivers, power supplies, and accessories. 41 pages.
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:…
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…
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…
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…