Large batch of DEC flip chips

Doug Ingraham dpi at
Thu May 14 10:49:13 CDT 2015

On Thu, May 14, 2015 at 5:36 AM, Jörg Hoppe <j_hoppe at> wrote:

> Here's the opportunity to buy&save batches of DEC flip chip modules.
> It must be several thousands, I estimate the total weight of the boxes to
> over 100kg.
> Most are "red" logic series, but other colors are there too.
> Apparently they are plugged from different machine types, maybe even
> PDP-10s or -12s.


> So question: Is there any reasonable demand for flip chips in the
> community?
> And more difficult: any hint about the price I can offer?

I have managed over the years to obtain most of the spares I need for my
straight 8.  For those A, B, G, R, and S type modules I still don't have I
am willing to pay as much as $30 with shipping each.  Of course paying less
is always better.  And the really rare cards I would of course pay more
for.  Even cards with missing parts or defect tags are valuable for the
parts that are still there.

The first thing you probably should do is inventory what you have and put
it up on a website as available for sale or trade.  I should probably put
up a website with a list of what I an looking for.

Doug Ingraham
PDP-8 SN 1175

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