Hi,
I think the 3rd picture is the second version of the Digital Precision
keyboard interface. The first version used a Z80 CPU and simply didn't
work reliably (unusable).
Malcolm
On 05/04/2011 13:11, Dilwyn Jones wrote:
Just had a look at Lee's QL Image Repository, where he has several
picture sof unknown QL hardware.
It's at
https://picasaweb.google.com/lee.privett/UnknownHardware?authkey=Gv1sRgCIKWr4aVi-S8-AE#
(hope that's not too long - you might have to copy and paste the whole
URL up to and including the '#' at the end to your browser).
Can anyone help him identify the pictures - it's a really interestihng
gallery actually!)
First picture is a backplane of some sort.
3rd picture seems to be an interface for the EPROM slot, but no idea
what it is.
The board after the disk drive image is an internal memory expansion
(possibly SPEM?)
5th from last looks like the last version of the serial-parallel
interface, which I think was made by TF Services for Bill Richardson
to sell?
Picture 22 is a keyboard interface of some kind, who made this one?
Dilwyn Jones
P.S. I like the countdown '12 days until Quanta AGM'....
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