Hi YHR:

Thanks for the reply.

Sadly my tinkering has seen a lot of perfectly good stuff reduced to junk. That's why I seek the advice of those in the know.

What got me interested in what is currently just a mental exercise, is that it occurred to me, that if the on-board (tank) electronics were capable of the desired action (as evidenced by the effect of the transmitters trim pot on the direction of travel) then it wasn't the tanks electronics that needed modifying, but the transmitters.

It appears to me that the tank only does what the transmitter signals it to do (within its design parameters). As it is already capable of very slight changes in direction as well as very rapid changes, some middle range compromise should be attainable. The pots on this transmitter are very small, probably proprietary, and not easily replaced. This led me to consider adding a fixed resistor wired in parallel (Ohms Law) to modify the effect of the existing pot to signal less (or more if desired) direction change for the same stick travel. From there, why not use a pot instead of the fixed resistor so the effect could be fine tuned to the desired sensitivity. Ad a switch to disconnect the parallel resistance and you have an easily selectable dual range setup.

I only know enough to be dangerous, that's why I put ideas out here to see if those with more knowledge and experience think the reasoning is sound and it might be possible. I also was wondering if anyone had already tried this and if so, how did it turn out. I've really need that decaff.

Cheers,
Old Fatman