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30 results

[Assorted Learadio devices] (Item)

Photograph of assorted Learadio devices, circa 1935. Pictured devices include the Model R-3 aircraft receiver, T-30 radio unit, and a shieled loop antenna.Inscription on verso: "Lear equip / circa 1935."

[Learadio remote controller and transmitter remote control] (Item)

Photograph of a Learadio remote controller and transmitter remote control, circa 1936. The caption describes the devices' specifications and utility.Typed caption on verso: "O. (circa 1936) A picture of both the combination remote controller and the transmitter remote control. You will note there were blank spaces on the transmitter selector dial to write in the particular frequencies of the…

[Learadio loop antenna] (Item)

Composite photograph of a Learadio loop antenna, showing two views of the internal components, circa 1931-1939. The caption describes the antenna's development and specifications.Typed caption on verso: "H. Shows an early attempt to tune the loop antenna at the antenna, itself, to eliminate the losses attendant to a long loop line. Also you will note that there were two loops in the fore and aft…

[Man using Learadio portable marker transmitter] (Item)

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]."

[Learadio antenna reel] (Item)

Photograph of a Learadio antenna reel, circa 1939.Inscription: "Complete manual operated ant. reel with spring take-up fair-lead and [illegible]. / 1939."

[Learadio portable transceiver and travel case] (Item)

Photograph of a Learadio portable transceiver and travel case, circa 1931-1939.Inscription: "Portable transceiver for [illegible] use."

[Learadio loop antenna] (Item)

Photograph of a Learadio loop antenna, circa 1931-1939.

[William P. Lear with Lear-o-Scope equipped automobile] (Item)

Photograph of William P. Lear with his Lear-o-Scope-equipped Plymouth automobile, New York City, New York, circa 1935. A loop antenna is mounted to the roof of the car. Inscription: "1935. 121 W 17 St NCY. WPL with first Lear-o-Scope." Stamped on verso: "Conrad Studios. New York." Inscription on verso of duplicate photo: "Bill Lear standing in front of his Plymouth parked across the street from…

[Learadio workers using a Learadio portable unit] (Item)

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. Batavia portable - outside plant."Stamped on verso: "Please return to: Lear Archives, [address and telephone number in Reno, Nevada]."

[People working in Lear Developments workshop] (Item)

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, (2) Lear Laboratory, (3) Complete stock of test apparatus and inventory, (4) 1/2 floor #4 125 W 17th St NYC. (Associated with Fred M. Link 1933-1938.)"