I have a question. I purchased an airplane with airtronics servos. I have a jr transmitter. I thought I could buy a jr reciever and plug the airtronics servos in and I would be good to go. But the connections dont match up. Could i use a airtronics reciever and jr crystal? Is there a connection conversion or something. Thanks in advance. Sorry for my ignorance in the radio area of this hobby.