I built mine from a layout on Tom Uban?s site:
http://www.ubanproductions.com/museum.html
Did you use that directly with ExpressPCB and order
from ExpressPCB or did you convert to more standard gerbers?
I just went with ExpressPCB for minimal hassle, but you could probably get it cheaper from
other board houses these days. For my KB11-A + FP11-B, which run asynchronously, it was
handy to build up two of these. Also useful for the RK11-C.
?FritzM.