Identifier2000-06-20_image_033SourceThe William P. and Moya Olsen Lear Papers (2000-06-20), Box 3, Folder 8DescriptionPhotograph of a Lear Developments Type T-120 transmitter, circa 1936-1939. The caption on verso notes that transmitter was developed for the Royal Canadian Air Force and describes the device's components and specifications.
Caption on verso: "J. This transmitter/receiver combination was designed for the Canadian RAF and called the Type T-120, built around 1936-37 and was essentially an R3 receiver but with a special transmitter that could transmit on either telephone modulated CW or CW. Was easily adjusted and I think worked on the frequency range around 4000 KC."Creation Datecirca 1936-1939SubjectLear DevelopmentsRadio--Transmitters and transmissionRadio in aeronauticsCanada. Royal Canadian Air ForceAids to air navigationExtent1 photograph : black and white ; 10 x 8 inOriginal Formatphotographic printsBibliographic CitationThe William P. and Moya Olsen Lear Papers/The Museum of FlightRightsCopyright undetermined
[Lear Developments Type T-120 transmitter], [2000-06-20_image_033]. Museum of Flight Digital Collections, accessed 13/02/2026, https://digitalcollections.museumofflight.org/nodes/view/4678
![[Lear Developments Type T-120 transmitter]](/img/placeholder.gif?1768172494 "[Lear Developments Type T-120 transmitter]")