I have a JR X6102 transmitter that I like a lot. Here's the problem:

1) The spare R700 RX I have decided to stop working.

2) Even if I get it to work or get another R700 I will have to replace the servos in the plane because, of course, the connectors don't fit into the newer JR receiver. Thankfully, I have Futaba servos that work with my R700.

3) Saving this old radio is not a bad idea because I can sell the complete plane down the road. Some guys look for complete running trainers to get into the hobby. I know, as I have sold them before. If I replace the servos and RX with the JR equipment it will be a tougher sell. For a beginner these old 72mhz radios are fine. The one in the original trainer was even more simple than this. It was a basic 4 channel, this one at least has 6 channels.

4) I have no way to test the Airtronics TX or RX because they have different connectors than the batteries in my JR stuff.

I don't care about the Coroplast construction. Rather, I just needed a trainer and bought this in a bundle deal. I should have kept looking for a traditional balsa trainer but it's too late now. I have get this rig up and running somehow.