Browse Items (1093 total)

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

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

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

Photograph of a Learmatic navigator, circa 1940s.Inscription: "Learmatic navigator combining directional gyro with adjustable [illegible] and automatic and/or manual loop [rotator?]."

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."

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…

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…

Photograph of Amelia Earhart and William P. Lear, circa 1930s.Inscription on verso: "[G. P. Putnam?]."

Photograph of William P. Lear (right) and Dr. Neal E. Baxter (right) with Baxter's Ryan Navion aircraft, July 1951. The caption notes that this photo was taken after the installation of a Lear, Incorporated L-2 autopilot.Typed caption on verso: "No.…

Photograph of William P. Lear (left) and Dr. William Randolph Lovelace (right) in the cockpit of the Lovelace Foundation's Beech 18 aircraft, Los Angeles Airport, California, April 1960. The caption notes that the aircraft is outfitted with Lear…