DEC core question

From: Ethan Dicks <>
Date: Sat Dec 11 17:27:07 1999

--- Joe <> wrote:
> OK all you DECheads, here's a question for you. I have a DEC core memory
> board that says H213 on the handle. A stick on label on the back says "4K
> x16" but etched into the board it says "16k x 19 bits". Why the
> difference? (I know about parity so forget the extra three bits.)

Can you see the core mats or is there an opaque cover? I have some stuff
that may be the same thing you have (from an 11/05). Mine is marked
similarly, but three of the mats are blank.

I suspect that the same PCB could be used in several machines, including
an 18-bit machine w/parity, depending on how many mats were wired.


Infinet has been sold. The domain is going away in February.
Please send all replies to
Do You Yahoo!?
Thousands of Stores. Millions of Products. All in one place.
Yahoo! Shopping:
Received on Sat Dec 11 1999 - 17:27:07 GMT

This archive was generated by hypermail 2.3.0 : Fri Oct 10 2014 - 23:31:54 BST