[Fwd: Restoration of a PDP-8a]

Hi, I have started restoration of a PDP-8a model 8A420-CN. I doesn't have any schematics for this machine and I have searched internet for sources without any luck. The sets on http://bitsavers.trailing-edge.com/pdf/dec/pdp8/pdp8a does not include my version. My machine came with 16K*12bits core memory, 20 slot backplane and only the "Limited function board" frontpanel (don't now if this machine ever had the "Programmer's console"). This is how my "Power distribution board" looks like: http://www.abc80.net/docs/pdp8/pdp8a/DSC_2118.JPG Some questions: 1. Is there anybody that could help me with schematics on this machine? Scans are preferred, but I can pay for paper prints. I'm especially looking for a diagram that matches the "power distribution board" that I got. 2. If I plug in the machine with only the regulator boards (2xG8018) and the limited function board in it, should the lights and fans come to life? 3. I suspect that my model shouldn't have "Power distribution board control", G8019 since my "Power distribution board" misses the connector for this board. Can that be correct? Any help is appreciated. PPD-8a is new to me, but I have some knowledge in the PDP-8 architecture since I restored a PDP-8/L that was in really bad shape. /Anders