PDP 8/E partially restored

Well, I have my PDP 8/e partially restored. I realized that I had the correct replacement bulbs for the front panel 'in stock', in that I obtained a bunch of used ones in some junk DEC peripheral parts earlier this summer. Is this dumb luck, or just the Computer Gods manipulating Fate again? Obviously, I'm a man of Science, so I'm leaning towards the Computer Gods scenario... All the panel lights are working, except the least significant bit (switch 12) on the lower display. There is some evidence that someone has replaced an IC on the front panel display board sometime in the past. I have 8K of core installed and I'm running the "initial operating check" from chapter 2 of the maintenance manual. So far so good. Does anyone have any small test routines that I might toggle in to futher test the core? I did switch in a different M8310/M8300 set, and that one panel light is still dead (and obviously I tried 2 working bulbs before i proceeded to more complicated stuff). Stuff I still need: 2-3 yellow switch handles, and possibly one switch to replace the EXTD ADDR LOAD switch someday. that switch does work, but it doesnt feel at all right... Also, I need some serial cables, as i dont have a single one... And I still want to find a supplier to buy some new front panel lamps from, at a reasonable price... I think I bought a PDP 8/e,f,m small computer handbook once, so I better go look that up! Anyone with a good suggestion on how to printout the small scans of that book thats on Highgate, so that it wills a Letter size sheet of paper, should contact me ;) -Lawrence (extraordinarily pleased with himself) LeMay