Search Digital Records

• Subject > Learadio (remove)
• Subject > Aids to air navigation (remove)
• Subject > Radio in aeronautics (remove)

Limit your search

• Still Image (32)
• Text (4)
• Mixed Materials (1)

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

• photographic prints (32)
• composite photographs (3)
• brochures (2)
• advertisements (1)
• pamphlets (1)
• posters (1)
• press releases (1)
• reports (1)

• Copyright undetermined (27)
• In copyright (10)

• Aids to air navigation (37)
• Learadio (37)
• Radio in aeronautics (37)
• Lear Developments (20)
• Radio--Transmitters and transmission (15)
• Airplanes--Cockpits (4)
• Antennas (Electronics) (4)
• Radio direction finders (4)
• Lear, William P. (William Powell), 1902-1978 (2)
• Inventions (1)
• MacRobertson International Air Race (1934) (1)
• Nichols, Nichols, Reeder Glen, 1904-1975 (1)
• Pangborn, Clyde Edward, approximately 1893-1958 (1)
• Ross, Betsy (1)
• Turner, Roscoe, 1895-1970 (1)
• Women air pilots (1)
• Women in aviation (1)

37 results

[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 first Lear-o-Scope] (Item)

Photograph of William P. Lear with the first Lear-o-Scope, circa 1935.Inscription: "1935. WPL with 1st Lear-o-scope."

[Aircraft instrument panel equipped with Learadio device] (Item)

Photograph of an aircraft instrument panel equipped with a Learadio device, circa 1941.Inscription: "1941. [Amphibian?] with first dry-cell operated trans-rec[cut off]. [illegible] watt. Range 300 miles."

[Learadio Model RCB receiver tuning unit] (Item)

Photograph of a Learadio Model RCB receiver tuning unit, circa 1930s-1940s.

[Learadio radio compass tuning unit] (Item)

Photograph of a Learadio radio compass tuning unit, circa 1930s-1940s.

[Betsy Ross using Learadio portable receiver] (Item)

Photograph of pilot Betsy Ross using a Learadio portable receiver in the cockpit of her Taylorcraft aircraft, August 20, 1940. An accompanying press release describes Ross's recent flight from Harrisburg Pennsylvania State Airport, noted as the first light plane altitude flight ever recognized by the National Aeronautics Association. It also describes the Learadio receiver installed in Ross's…

[Learadio portable receiver] (Item)

Photograph of a Learadio portable receiver, circa 1930s-1940s.Inscription: "Portable 2-band battery-operated receiver used thru-out WW2 by many USAF [personnel?] here and all over world."

[Learadio automatic direction finder] (Item)

Photograph of a Learadio automatic direction finder, circa 1940.Inscription: "Manual loop antenna rotator and directional indicator. 1940."

[Learadio equipment installed in front and rear cockpits] (Item)

Photograph of an unidentified aircraft fuselage with its side panel removed, showing the Learadio equipment installed in the front and rear cockpits, circa 1940s-1950s. Several of the components are labeled. Caption: "NA-44 / Learadio equipment installation / Front and rear cockpit -- Right side. 20-1171-27." Labeled components: "Direction indicator panel -- Rear cockpit. Automatic compass and…