Browse Items (63 total)

[Learadio Type TR-50 transmitter]
Photograph of a Learadio Type TR-50 transmitter, showing views of the internal components and the external case, circa 1931-1939.Typed caption on verso: "T. Shows the original effort to make a more powerful transmitter by using tubed in parallel.…

[Learadio workers using a Learadio portable unit]
Photograph of four Learadio employees using a portable transmitter and receiver unit, Garden City, New York, circa 1935. The company's factory building is visible in the background.Inscription on verso: "1935 - Garden City - Long Island, New York.…

[Man using Learadio portable marker transmitter]
Photograph of a man using a Learadio portable marker transmitter in an open field, circa 1931-1939.Inscription: "First completely portable outer or inner marker transmitter for radio compass [illegible]."

[Men using machine tools in Lear Developments workshop]
Photograph of two men using machine tools in the Lear Developments workshop, New York City, New York, circa 1933-1938.

[Men with Waco UIC aircraft]
Photograph of three men with a Waco UIC aircraft, circa 1920s-1930s. The verso inscription identifies two of the men as Wayne Thomis, Aviation editor for the "Chicago Tribune," and Howard Ailor, Waco salesman. The text "Equipped with Lear Radio…

[People working in Lear Developments workshop]
Photograph of people working in the Lear Developments workshop, New York City, New York, circa 1933-1938. Electronic components, device casings, and a loop antenna are visible on the workbenches.Inscription on verso: "The Lear (1) Engineering Dept,…

[People working in Lear Developments workshop]
Photograph of people working in the Lear Developments workshop, New York City, New York, circa 1933-1938. Machine tools and device casings are visible on the workbenches.

[Sydney Nesbitt presenting Learadio Model APR-A portable receiver to Katherine Rawls Thompson]
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…

[Various components for Learadio T30R3 installation]
Photograph of various components for a Learadio T30R3 installation, circa 1931-1939. The verso caption describes the problems and capabilities of the trailing antenna.Typed caption on verso: "G. Shows a complete set of equipment for a T30R3…

[William P. and Moya Olsen Lear Papers, Box 12, Folder 13 - Learadio dealer franchise agreement form with "Appendix B" of Lear Avia contract, circa 1939-1944]
Items from Box 12, Folder 13 of the William P. and Moya Olsen Lear Papers, circa 1939-1944. Contains a Learadio dealer franchise agreement form (blank) and a page from Appendix B of a Lear Avia contract. Two total documents.
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