Hello Dave,
I am using the Atlas system, so they are all type G signals. Atlas sells the block detectors, the signals and boards, but did not seem to sell the turnout controllers. That was made by Custom Signals (along with a host of other cool things like a tumble down controller etc)
I am sure that the boards are not hard to make (there is a PIC 16C505 chip and some resistors, voltage reg, and modular jacks). But one would still need to burn in a program. I was hoping someone was going to pick up the product line. I will try emailing Atlas directly.
Do you market signal systems? there does seem to be a few folks out there doing just that. They would have to be compatible with with the Atlas system, though (I have a lot of $$$ invested already!)
Larry N