Good memory board for Heath H-11?

Glen Slick glen.slick at
Tue Feb 9 20:35:58 CST 2016

On Tue, Feb 9, 2016 at 6:08 PM, Richard Cini <rich.cini at> wrote:
> All —
> I picked-up a Heath H-11 machine the other day and it has a single 4kw memory board. From my prior experiences with DEC (an 11/34a many years ago; now at the RI Computer Museum), I know my way around the field guide…but I’m having trouble trying to identify the correct module number suitable for the LSI-11 CPU. Even though it’s a Heath machine, I assume it’s module compatible with DEC. Any help would be appreciated. Thanks!
> Rich

Maybe an M8044 MSV11-D (no parity) or M8045 MSV11-E (parity) would be
most appropriate. They came in 4KW, 8KW, 16KW, and 32KW flavors.

Fairly common on eBay.

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