Search Digital Records

• Subject > Radio in aeronautics (remove)
• Subject > Learadio (remove)
• Rights > In copyright (remove)

Limit your search

• Text (3)
• Mixed Materials (2)
• Still Image (1)

• New York (N.Y.) (1)
• New York (State) (1)
• United States (1)

• brochures (2)
• mixed materials (1)
• pamphlets (1)
• photographic prints (1)
• reports (1)

• In copyright (6)

• Lear Developments (6)
• Learadio (6)
• Radio in aeronautics (6)
• Aids to air navigation (5)
• Radio--Transmitters and transmission (4)
• Radio direction finders (2)
• Inventions (1)
• Lear, William P. (William Powell), 1902-1978 (1)

6 results

[Brochure for Learadio Model T30-R3AB aircraft transmitter-receiver] (Item)

Brochure for the Learadio Model T30-R3AB aircraft transmitter-receiver, circa 1939.

[Brochure for Learadio Model UT-6 radio transmitter] (Item)

Brochure for the Learadio Model UT-6 radio transmitter, circa 1939.

[William P. Lear with Lear-o-Scope and loop antenna] (Item)

Photograph of William P. Lear with a Lear-o-Scope and loop antenna, New York City, New York, circa 1935. Inscription on verso: "Bill Lear and his first direction finder, the Lear-o-Scope. NYC. 1935. Courtesy Lear Archives." Typed caption on verso: "Q. Here yours truly is looking through the loop antenna that was finally adopted for the Model L Learscope. It is interesting to note that the Model L…

[William P. and Moya Olsen Lear Papers, Box 4, Folder 30 - "Descriptive specifications of Learadio Lear-O-Scope Model LC 100 Radio Compass Direction Finder," circa 1931-1939] (Item)

Items from Box 4, Folder 30 of the William P. and Moya Olsen Lear Papers, circa 1931-1939. Contains two reports related to the Learadio Lear-O-Scope Model LC 100 Radio Compass Direction Finder.

Learadio aircraft radio equipment [pamphlet] (Item)

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.

[William P. and Moya Olsen Lear Papers, Box 4, Folder 6 - "Learadio Airport Localizer (L-P-2)", 1939 September - October] (Item)

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, and a Library of Congress certificate of copyright. 14 total documents and original folder labeled "L-p2 / 'Learadio Airport Localizer.'"