will this chrystal work, Sing;e radio with Dual chrystal
To add:
JR requires a positive-shift RX. Airtronics and JR are positive-shift systems. Hitec and Futaba are negative-shift systems.
The new Airtronics Z-connectors, Hitec and JR connectors are compatible with each other. Futaba and old Airtronics connectors are not compatible. I dunno about Multiplex.
--Bill