Anyone ever see a real KE-11A? (arithmetic peripheral for the PDP-11/20)

[Guy Sotomayor]

On Jul 11, 2009, at 2:43 PM, Ethan Dicks wrote:

>
> I'm nowhere close to starting any sort of construction - I'm just
> hoping to find a photograph for now.  Long before I'd start any sort
> of KE-11A project, I'd want to find a way to power up my
> three-BA11-11/20 (no authentic PSUs at the moment - those were
> harvested before I got the machine) and get it running.  I'm expecting
> to be using XXDP and RT-11 to confirm that it works before I move on
> (fortunately, it's easy to drop peripherals like an RX11 on an 11/20
> so I can import test programs from floppy or papertape as I debug any
> problems).
>
> Any pointers (in addition to bitsavers) on the KE11A would be much
> appreciated.  I plan to tear into the changes made in simh to see how
> it works from a software standpoint, but the manual does have some
> good descriptions already.
>

There were 2 versions of the KE11A AFAIK.  The version (which is what  
I have) is a complete system unit (4 slot) backplane.  There's another  
version that is a single SBC (quad) card.

I *think* I have all of the docs for the version of the KE11A that I  
have.

TTFN - Guy