RE: Using Airtronics servo with JR receiver??
Coindex, The easiest is to just buy adapters to go from the old(black) to new(blue) airtronics and then they will just plug into your jr rx.. You can't just change the wires around as the old ribbed airtronics plug will not fit into the JR rx. If your good at soldering you could buy some pigtails with jr or airtronics plugs on them, cut off the old plugs and solder on the new pigtails.
Fred