11/45 pictures & questions

From: Jay West <jwest_at_classiccmp.org>
Date: Sun Dec 28 17:04:08 2003

I couldn't wait, had to get the 11/45 off the trailer and dig around in it.
Upon first close inspection, the thing is FILTHY. It will take some very
major cleaning before attempting to do anything with it. However, from a
first looksee - it definitely doesn't look "beyond all recall", it looks
like it will clean up nicely. While very dirty, I can't see any rust
anywhere. Good sign.

Some pictures are at http://www.ezwind.net/jwest/1145

Questions...

There is a separate power supply at the back top of the rack, which powers a
DEC brand backplane mounted "pins forward" in the front. There's also some
lights & switches here. There's some flipchips in it, and lots of what look
to be D/A cards. Does anyone have any clue what this was used for? I took
extra pictures of this part - tried different focus settings & all so
hopefully some will be clear.

Looks like the machine has no FP option, and 8K of core memory. I haven't
decided what OS I want to run on this thing yet, maybe RT11, or RSTS, but I
was really hoping to run 2.9BSD or Unix 7 or some flavor of unix. That's not
gonna happen with 8K of core. I have some RL02's I could put on it. Anyone
want to trade the bits to make it use semiconductor memory in exchange for
the core backplane and core boards? Is FP required for anything I've
mentioned? I'll get it up and running on 8K to test & refurb, but definitely
want to go the semiconductor memory route so I can run one of the above
O/S's. Hey, can this thing use any of the memory boards I have in my 11/44?

Thanks for any advice!

Jay West
Received on Sun Dec 28 2003 - 17:04:08 GMT

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