28 Oct
2008
28 Oct
'08
10:23 p.m.
I counted 52 wires x 52 wires in the top plane
I counted either 20 or 19 total planes
In looking at the photo, it appears that there are 2 of those wires thru
each core, so this is 26*26*20 or 13520 bits total
The connector marked X has 40 conductors. I would assume there is also
a Y connector, and maybe fewer sense lines? maybe only 1 sense line per
plane?
This looks a lot in size and constructions as many 50's era core stacks
I have seen, but that and a quarter will get you a cup or coffee
(somewhere).
Jim
bfranchuk at jetnet.ab.ca wrote:
Mike Loewen wrote:
I received this request for information on a core memory stack -
does anyone recognize it? I passed on some general info to him about
core memory and how they work.
I have no idea, but 40K sounds more like the
original selling price.
The big question here is
the word width on the stack - Core memory tends to come in 4K blocks x N.