Did you use the DIP or PLCC 27C4096 for this?
On Fri, May 19, 2017 at 11:22 AM, Alain HAOUI <alain.ha...@free.fr> wrote:
> With Peter Graf's indications and some AM27C4096 ships supplied by Derek
> Stewart, I realized a little circuit permitting to have a global ROM size
> 1 MegaBytes on Q40 with 2 big OSes (custom SMSQ/E) ROMed together (up to
> 512KB each) and selectable from a case switch.
> You can find schematic and some details from forum :
> <http://qlforum.co.uk/viewtopic.php?f=20&p=17547#p17547> &p=17547#p17547
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