DX8, DX7, Airtronics Infinity 600, Various Airtronics 4-5 channel, but I am slowly converting them to the Spektrums. I really want to convert my old Kraft 5ch to 2.4, I love the gimbals, they are the smoothest I have ever used. I have seen it done some where in a post but can't find it anywhere to see how he did it.