DEC core question - test-drb@ccmp.vtda.org

11 Dec 1999

--- Joe &lt;rigdonj(a)intellistar.net&gt; 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.

-ethan

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