11/45 pictures & questions (cleaning question too)

Zane wrote... collection of flipchips and such that you mention and the fact that it's only got 8k of RAM, I'm guessing that it was used as some sort of intelligent industrial controller. Yup, airforce or navy, forget what the previous owner said. Definitely some type of testbed or process control or automated testing yada yada yada (Papertape OS). I'm not sure if DOS/Batch would fit on a 8k system as I've not messed with it. I'm fairly sure the RAM boards in your /44 won't work in a /45. Once you get a decent amount of RAM in the system I'd recommend RSTS/E for an OS (it seems the most appropriate to me), and failing that either RSX-11M/M+ or RT-11. Oh no, I didn't strive so long for a /45 to have it run PTOS (no paper tape reader for it anyways). Unix is my preference for this, failing that, RSTS. But my inability to find semiconductor memory and the segmentation boards may dictate otherwise. We'll see. This will be a very fun project. Maybe I'll put it ahead of my 8E restoration and my 11/44 restoration :) Hey... this machine, like some of the others I've worked on, has some very large bundles of wiring that are virtually impossible to clean when dirt is caked into them. Anyone found a good way to degrease and get the dirt off wiring harnesses? My methods clean the surface but seem to mainly drive the grit inbetween the wires making up the bundle. Anyone have a trick to this? Jay