Hi: I have a rotor motor for Azimuth that looks like a 5400B . The model number on it says 7501-002 When I went to Google it wouldn,t cross. It looks like a KR 400 or 600 control might work on it Is anyone familiar with this model or seen one ?????? This looks like the rotors I have used like the 800 and 1000 Yaesu and 5400B. Jerry w0sat