<snip>
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_...
I remember them as being 16 bits wide, so the core planes must be 8 deep.
OK very cool now we got to the bottom of it! :) You are right- 1 higher part as connector P2 says "90536 ASSY 7128082" Which is a direct match to page 15: "Core Array 8k" That would be 8K of the word-size of the computer - which I read is 16 bits. Which comes full circle to Bill Deg ... claiming it was 16K... which I figure he was thinking bytes, and if so, correct! 1991 publication on that document, and the computer had a long run with the Navy of course. so no wonder the board artwork is hand routed but the board is populated with 79 - 82 date code ICs. Wikis put the development in the early 70s. Pretty neat pedigree for this board. So great to know what it was from. Thanks Duane! Excellent.
If you would like to see the real thing without the covers I can bring it to the museum. I'd love to have you look at it, and we can check the geometry of the core planes to see if they are 8 deep as you suggest.
Boards like this from various manufacturers are on the walls at Kennett Classic too. BIll