Browse Items (1093 total)

Photograph of Sydney Nesbitt (left) presenting a Learadio Model APR-A portable receiver to Katherine Rawls Thompson, winner of the Alcazar Trophy Race, Miami, Florida, January 1941. An unidentified U.S. Marine Corps serviceman stands in the…

Portable radio receiver in luggage-like case, worn yellow fabric along top and sides. Face of receiver at top with black dials and brown leather handle across. Small door opens at back. Label at front top center with the information: "The Pilots…

Lear Avia Learadio constructed out of tan yellow wooden casing with two white dials on the front, along with a tan mesh fabric portion for the speaker. Marks: "Learadio." Part/serial number: "Model 565."

Gyroscope made out of black metal and steel. The main body of the object floats within a second thick black metal cylindrical form that has a bright red painted interior, along with bright green and orange painted accents along the edges. The object…

Items from Box 18, Folder 2 and Box 200, Folder 2 of the William P. and Moya Olsen Lear Papers, circa 1940-1943. Contains documents and drawings related to the patent application of the radio direction finding system (Case 20-1). 24 total items.

Items from Box 21, Folder 7; Box 207, Folder 2; and Box 209, Folder 4 of the William P. and Moya Olsen Lear Papers, February 1943 to February 1944. Contains correspondence, diagrams, notes, photographs, and sketches related to the Leartron control…

Items from Box 24, Folder 4 and Box 205, Folder 5 of the William P. and Moya Olsen Lear Papers, July 1943-1944. Contains correspondence, diagrams, memos, and patent copies related to the expandable ring clutch. 27 total items and original folder…

Items from Box 27, Folder 14 and Box 200, Folder 2 of the William P. and Moya Olsen Lear Papers, February 6, 1941. Contains a press release, photographs, and a poster related to Lear Avia's "Complete Learadio Workshop on Wheels." Five total items.

Items from Box 28, Folder 4 and Box 200, Folder 4 of the William P. and Moya Olsen Lear Papers, circa 1926-1941. Contains patent copies and diagrams related to Lear direction finders. 26 total items.

Items from Box 33, Folder 8; Box 205, Folder 6; and Box 210, Folder 1 of the William P. and Moya Olsen Lear Papers, circa 1938-1944. Contains graphs, diagrams, and photographs related to performance and technical data for assorted Lear products. 65…