I believe these were made for the navy by COLLINS and used in naval aircraft. The set uses an auto-tune system like that used in the ART-13 transmitter.The set is dusty and the paint on the cabinet is peeling. It is complete with all tubes and looks un-modified, except that the dynamotor is missing. All the controls turn freely without any binding. Take a good look at the pictures as they give a much better description than words can. The item "COLLINS RT-91/ARC-2 HF 2-9 MCs USN TRANSMITTER/RECEIVER looks UNMODIFIED" is in sale since Saturday, March 2, 2019.
This item is in the category "Collectibles\Militaria\Surplus\Radios". The seller is "wa7hdl" and is located in Salmon, Idaho.
This item can be shipped to United States, Canada, Bahamas, Uruguay.