settings for DEC M7506 (MSV11-M)

Pete Turnbull pete at
Thu Apr 9 08:36:54 CDT 2015

On 09/04/2015 12:52, Noel Chiappa wrote:
> From: Pete Turnbull
>      > Does anyone have a description of the switch settings for a QBus
>      > MSV11-M (aka MSV1M) memory card (M7506)?
>      > .. I can't find the manual ... or any useful notes anywhere.

> How odd. I've looked through every plausible DEC QBUS document I've got, and
> none mention the MSV11-M!

Yes, same here :-(

> I wonder why they left it out? It provides up to 1MB on a dual card, whereas
> the MSV11-P only does 512KB on a quad card? So it's not as if it were already
> obsolete by 1986 - it's clearly better than something they _did_ include!

Odd indeed.  And mine's an -MB (the full meg), so it would be useful. 
But apparently there was a manual so I live in hope...


Pete Turnbull

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