> >
> >
> > Is anyone interested in trading a pair of what appear to be two 256K
> > Unibus memory boards, made by National Semiconductor Memory Systems
> > (these boards have four rows of thirty-two 4164-15 ICs on them), for
> > two of the following:
>
> What am I missing here ?
>
> 4 rows of 32 64Kbit RAM chips is 4 rows, each of 4*64K bytes. Or a total
> of 16 * 64K bytes, or 1 Mbyte.
>
> These boards are larger than you thought, I think (!).
>
> Are you sure they're Unibus? The reason I ask is that I've seen similar
> boards (hex height, NatSemi) made for VAX11/730 (and I would guess
> 11/750) systems. They may look like Unibus boards, but the pinouts of the
> A and B edge connectors is totally different!
>
> -tony
These could be 11/44 memory bus memory or MS750/MK11 memory compatible
boards.
Bill
--
bpechter_at_monmouth.com | Microsoft: Where do you want to go today?
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Received on Fri May 26 2000 - 05:40:07 BST