IMSAI VDP-80 documentation?

Brent Hilpert hilpert at
Thu Aug 13 13:18:59 CDT 2015

On 2015-Aug-13, at 4:49 AM, Santo Nucifora wrote:

> Today I am taking delivery of an IMSAI VDP-80 and am very happy to have
> found one.  This helps fill in my IMSAI collection.  While it comes with
> some disks (and I can deal with restoring the Persci drives), it comes with
> no documentation.  I do want to restore it to working condition.
> I also have a PCS-80/30 that, I believe, shares some of the cards but not
> all and have the documentation for that one.
> Would anyone have any IMSAI VDP-80 documentation they can share? There
> doesn't appear to be any online; at least in the usual places.

As an S100 system, you may be able to piece most of the doc together bit by bit.
Here's doc for the video board for example:

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