John, l had a whole box of old rail logic boards given to me. But they all had to be modified to work with LED signals. I sent them to the east coast to be done and that was the last I saw of them. Which is a bummer I would have liked having signals. Had a signal guru here from Utah a year ago he brought some examples, we sat down and after we went pass the $1500.00 mark I started losing interest at an accelerated rate. True CTC is even more pricey. ABS would be fine with me. I always enjoy seeing your MRR images and videos. A truly first class operation.