Mystery HP 1000 board

[Pete Lancashire]

Well there are 20 bits of ALU ....

And this guy has one and some other boards

http://nevadabarry.com/electron.html#HP%20Test%20Equipment

NO Connection with the site/person/etc .. just passing it on

On Wed, Jun 15, 2016 at 8:00 PM, Jay West <jwest at classiccmp.org> wrote:

> I have one of those boards. You sent me an email about it and I replied a
> week ago :)
>
> -----Original Message-----
> From: cctalk [mailto:cctalk-bounces at classiccmp.org] On Behalf Of
> CuriousMarc
> Sent: Wednesday, June 15, 2016 9:49 PM
> To: cctalk at classiccmp.org
> Subject: Mystery HP 1000 board
>
> Can anyone identify this HP board (see link to pictures)?
>
> https://goo.gl/photos/BBuAV1oozWNSqeUTA
>
> It was at under the main board of a newly acquired HP 1000-E, next to the
> firmware board. It says HP 54427-60050 Booster Microcode. It has 5
> bitslice
> SN 74S181 chips at the back. So I surmise maybe it's a late ALU booster
> upgrade?
>
>
>
> Marc
>
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