[cctalk] Re: Help identifying (and finding docs for) Dataram core memory board

> I have a pair of core memory boards (which look to be 8kilobytes + > parity) in > my Imlac, made by Dataram in the early 1970s (based on datecodes in the > machine, I'd say late 1973, early 1974). I can find no documentation on > them. They're labeled Imlac on the main PCB (P/N 01-12880-1), but > Dataram on > the core plane, and interestingly, this Blog post on Dataram's site: > > http://www.dataram.com/blog/?p=163 > > Has a very grainy picture of the assembly -- see the photo here: > http://www.dataram.com/blog/wp-content/uploads/2012/08/40yrs_7.png > > So I believe the whole assembly (PCB + core plane) was actually made by > Dataram. I have some high-res scans up at: > > https://plus.google.com/u/0/photos/117997069161125071032/albums/58762337385… > > > > > (See the last two images in the album.) > > > I'd love to find schematics for this, as it's the only part of the system I > do not have documentation for (and it's going to need some repair, as it's > got some fairly serious moisture damage -- some of the ICs are weathered > enough that they're unreadable). > > > I'm going to shoot a mail off to Dataram as > well, but I figure my odds there are pretty low. Actually they're a pretty clueful company...I'd say it's worth a try. (I grew up not far from them, and several older friends and mentors of mine worked there...I have lots of Dataram stuff)