Search Digital Records

• Subject > Aids to air navigation (remove)
• Subject > Learadio (remove)
• Item Type > Still Image (remove)

Limit your search

• Still Image (35)

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

• photographic prints (35)
• composite photographs (3)
• press releases (1)

• Copyright undetermined (27)
• In copyright (7)
• No copyright - United States (1)

• Aids to air navigation (35)
• Learadio (35)
• Radio in aeronautics (32)
• Lear Developments (15)
• Radio--Transmitters and transmission (12)
• Airplanes--Cockpits (6)
• Antennas (Electronics) (4)
• Radio direction finders (4)
• Lear, William P. (William Powell), 1902-1978 (2)
• Airplanes--Parts (1)
• Douglas DC-3 Family (1)
• Lear Avia Corporation (1)
• Lear, Inc. (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)

35 results

[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."

[Douglas DC-3 instrument panel with Learadio ADF 8] (Item)

Photograph of a Douglas DC-3 instrument panel with a Learadio ADF 8 automatic direction finder, circa 1940s. The direction finder and two gauges are circled and numbered. Inscription on verso: "Copy of instrument panel (Chicago and [illegible] DC-3)."

[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."

[Instrument panel outfitted with Learadio equipment] (Item)

Photograph of an instrument panel outfitted with Learadio equipment, circa 1940s-1960s. Several of the instruments are labeled.Caption: "NA-44. Learadio equipment installation. Rear cockpit. Direction indicator. Transmitter power supply - Type T-30-AB. Receiver output tuning indicator. Automatic compass receiver I.F. unit Type ADF-6."