Do you know if you can use a Futaba Gyro witha Futaba reciever?
Why wouldn't you be able to ???
The gyro number I listed above is incorrect (bad memory), I am using the GYA-350 in mine (with a JR receiver).
Here is a link to the instructions for it (in .pdf format):
http://www.futaba-rc.com/manuals/gya350-manual.pdf
You should be able to find the info you are looking for there.