Thanx guys for the fast response
I think i will get a new 4CH Futaba as long as it will work with the current receiver
probably something like this
http://www.futaba-rc.com/systems/futj40.html
What is the difference between 2.4GHz and 72MHz transmitters? is't possible that my transmitter is 36MHz as its got 36MHz sticker on the transmitter?
Thnx again