40k Ferrite Memory Core

[jim s]

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.
>
>