[Learadio combination motor generator and transmitter]

Composite photograph of a Learadio combination motor generator and transmitter, showing views of the internal components and the external case, circa 1935-1937. The verso caption states that this was one of the first transmitting devices for private pilots.

Typed caption on verso: "E. This is a combined motor generator and transmitter to operate on 3015 and 3120 KC. It was produced in quantities of about 200 during 1935-1937, and was generally used with a trailing wire antenna. It was one of, if not the first, private flyer transmitting equipment sold, so that the flyer could ask CAA ground stations for specific information they required regarding weather and also to get position reports."