On Wed, 2 May 2018 18:56:42 +0000 (UTC) Jerry Wright via cctalk <cctalk at classiccmp.org> wrote: I have a 990 hardware manual here that I haven't scanned in yet. It's in storage right now, I don't have a scanner set up at the moment, and I can't remember off-hand whether it has /12 schematics, but it's monstrous and has lots of schematic foldouts. I'll see if I can find it this weekend and let you know about the latter. I would think, though, that the PSU is covered. The A13 chassis was used in other 990's. I have a /10 setup in one. Been decades since it was powered up, though. later, jbdigriz