On 6/23/2021 9:09 AM, Duane Craps via vcf-midatlantic wrote:

On 6/23/2021 8:33 AM, Duane Craps via vcf-midatlantic wrote:

On 6/22/2021 12:15 PM, Douglas Crawford via vcf-midatlantic wrote:

Board is identified as 90536-7128081-00 G
Web hits on this are thin.
Anyone know what Univac machine this is from and its capacity?
I suppose count of the wires H x L = # of bits of storage, and one side is the word size of the computer?
Confirmation?
https://i.ebayimg.com/images/g/kw4AAOSwwlBgujxR/s-l1600.jpg
Thanks,
DC

That would be the Drawing Number. The part number is one higher and is on one of the connectors.

Listed here as a 8K memory board for AN/UYK-20( page 15) :

UYK_20_20A_Technical_Summary_May91.pdf (trailing-edge.com) <http://bitsavers.trailing-edge.com/pdf/univac/military/an_uyk-20/UYK_20_20A_Technical_Summary_May91.pdf>

I never saw one without the covers.

I remember them as being 16 bits wide, so the core planes must be 8 deep.

--

--

Several years ago I brought a UYK-20 Logic print Technical Manual to VCF, that someone gave me..I don't know where it is now. Bill Dromgoole might know.

If someone wanted to hook it up it might have enough information to identify the pin connections. 8K X 16 would be so cool.

That's a possibility. I have thought it would be cool to make a core work. If its not a whole lot of
analog conditioning I suppose its something I'd consider. Just at a glance, I'd expect that its all digital
on the connector, so there would be power and interface to deal with, only. Not too bad if that's
the case. It does have two broke ICs- smashed to the point of decapped, but that's easy to deal with.
Other than that its in great shape.

--
DuaneCraps
sdɐɹɔ ǝuɐnp