Search Digital Records

• Item Type > Mixed Materials (remove)
• Subject > Radio direction finders (remove)
• Subject > Aids to air navigation (remove)

Limit your search

• Mixed Materials (2)

• mixed materials (1)
• reports (1)

• In copyright (2)

• Aids to air navigation (2)
• Radio direction finders (2)
• Radio in aeronautics (2)
• Lear Avia Corporation (1)
• Lear Developments (1)
• Learadio (1)
• Radio--Transmitters and transmission (1)

2 results

[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.

[William P. and Moya Olsen Lear Papers, Box 18, Folder 1 - "Radio automatic guidance system (Case 31-3) and loop antenna system (Can 8-1)," 1940-1943] (Item)

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 manual titled "The Lear-Matic: The ultimate instrument for aircraft navigation." 15 total documents.