The info. I gathered from an internet search is that John moved to Melbourne, FL. Most of the pictures appear to be of his original Chicago layout - and the track plan is much larger than what was shown in the TM video; there's also photos I didn't recognize from the video.
I heard of the Bruce Chubb's model rr interface, maybe it was from the video. The internet photos show some of the circuitry - very complicated looking, yet from what I learned from the video the system was state of the art. As I think about the advantages of such a system, perhaps an operator can power a train more realistically, though I would think any speed control system would need to be deactivated.
