Solr Search · The Museum of Flight

[Learadio Model R-3 aircraft receiver, antenna, and peripheral components] (Item)

Photograph of a Learadio Model R-3 aircraft receiver, shielded loop antenna, and peripheral components, circa 1931-1939. The caption describes the device's development.Typed caption on verso: "P. This loop was metallized in an attempt to shield it, but it was found that the metallizing reduced the 'Q' of the loop so much that it was completely impractical. It was also used in conjunction with an…

[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…

[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 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…

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