Guessing that's an older rcvr since I can't find anything on it. If thats the case, I really doubt it will handle that kind of voltage. I'd be concerned about trying anything too much over 6v.

Maybe email Hitec RCD and ask them for the voltage range for that rcvr to be sure...

http://www.hitecrcd.com/contact-us/service_repair.html


I'd call them - I have better luck phoning than with emails.