So, Paul A lent me a set of these (thanks Paul!) so I could scan them in (they are not currently available online).
Howwever, there's a problem. The last page in the set contains the circuit diagram for the M7248 BBSY Repeater card (the heart of the whole device, since the DB11-A uses BBSY to decide which way to turn the repeater on) - and it's missing. (I have "Page 1 of 2" for the card, but not "2 of 2"). Does anyone else have a set of these prints? If not, we're not totally hosed: the card has only 7 IC's on it, so it _should_ be possible to re-create the drawing, working backward from the card, but it would be nicer to have the original drawing (which might e.g. have notes on it that would be useful). Noel