19 Oct
2021
19 Oct
'21
3:51 p.m.
It's just a memory board and looks like one!
Picture here:
https://www.mediafire.com/file/ive7i7ax6zdibv3/Screenshot_20211019_185019.p…
cheers,
Nigel
On 2021-10-19 5:21 p.m., Chris Zach via cctalk wrote:
Sounds familiar, got a picture of the board
somewhere?
C
On 10/19/2021 12:57 PM, Nigel Johnson Ham via cctalk wrote:
> I am trying to bring up an 11/23 system in a BA23 box, and the only
> memory i have is an obscure Plessey one. The only identification is the
> p/n 705920 with dash-100 in white ink. By counting the chips I make it
> 4MB, but it does not respond. Since it takes the full 22-bit memory
> space I can't see how any jumpers would change its accessibility. Does
> anybody have a manual?
>
> any help appreciated,
>
> Nigel Johnson
>