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Core Memory

T

Thrashbarg

Experienced Member
Joined
Apr 7, 2005
Messages
168
Location
Adelaide
Hi,

I was given some core memory last night from a lecturer and I would like to find out more information about it, maybe even get it going. There are no manufacturer logo's at all on it so I'm hoping someone here will be able to recognise it.

(my server will be slow)

http://kaput.homeunix.org/~thrashbarg/core/core2.jpg
http://kaput.homeunix.org/~thrashbarg/core/core3.jpg
http://kaput.homeunix.org/~thrashbarg/core/core4.jpg

If you do happen to recognise it please tell. I'm sure there will be documentation for it on bitsavers.org.
 
specifically i'm looking for the manufacturer and possibly the computer it came out of.

Other photo's on the net seem to suggest it's from a Univac.
 
Core plane

Core plane

The one on eBay is MUCH older (looks to be late 50's)

The one you have is from the 70's judging by the construction of the diode arrays (the red topped things). PC construction puts in in the 70s as well.

Edge connector looks like something HP would have used, but it doesn't look like anything I've seen from them. It doesn't look like an HP part number either. I'm guessing one of the second-tier 70's minicomputer vendors.
 
Hi
It does not look like a Univac part number (I worked there from 1968 to 1982). How many planes/bits are there?
The one on eBay referred to above (or is it below?) looks like it is from a Univac 1005 or 1050 which puts it in the 1960's.

Gerrit
 
This core stack was made by EMM/sesco sometime in the early 70's.
This is a "core stack" a "core memory" would include the drive circuitry.
I know this because I still repair core memories and core stacks and have for over 20years. We probably have the drawings for this stack as we now own EMM/sesco. And yes core memory is still in use today, mostly in millitary aplications. If you have any questions about this please fell free to contact me at tkmurray@npgcable.com
 
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