Modjo: This circuit is similar to what Ejaf is designing. You can get the translation
here .
It's a 555 timer setup as an astable oscillator, what's interesting is that the designer used an opto-coupler to ground the input from the IC. I might try that since it's tricky to be able to pull the pin from the TX2 IC to ground properly using my design.
Bencloned: Mate I've gotta get the design final yet before I microsize it!
I would like to be able to fit it into my controller but with the use of POTS now for steering and accel it will be hard to maintain the original enclosure.