Looking for HP 1000 A990 backplane jumper board and memory frontplane

[Robert]

I remember you mentioning wanting one of those when I got my 1000 A900
kit, Glen.

I don't have a spare but I'd be willing to take some photos and
measurements of mine, if that might help somebody to make one.

-- 
Robert
On Wed, Oct 3, 2018 at 2:31 PM Glen Slick via cctalk
<cctalk at classiccmp.org> wrote:
>
> I have an HP 1000 A900 20-slot box with a working 4 card CPU set
> (sequencer, data path, cache control, memory controller). I also have
> a 12990-60102 A990 CPU card that would replace the 4 A900 CPU cards
> and install in place of the A900 memory controller card.
>
> What I don't have is the 12990-60020 jumper board that would install
> in the A900 backplane instead of the A900 sequencer, data path, and
> cache control cards, nor a 12230-60001, 12230-60002, 12230-60003, or
> 12230-60004 memory frontplane to connect the A990 CPU to one or more
> memory array cards.
>
> I'm not very hopeful, but is there any chance anyone on the list
> happens to have a spare HP 1000 A990 12990-60020 jumper board, and/or
> a 12230-60001, 12230-60002, 12230-60003, or 12230-60004 memory
> frontplane that they would be willing to part with? Not expecting
> these for free.
>
> These might be parts that 360 Technologies had before they recently
> closed up shop, although if they did they probably expected business
> critical prices for them.
>
> (For reference, the HP Museum site has a copy of the HP 1000 A990
> Upgrade (HP 12990C) Installation and Service Manual, 12990-90011).