01-21-2017, 07:34 PM
[attachment=74]
This is the original 32K mod drawing with comments by John Wilforth, plus some additions by me sometime later.
It does use (4) static ram chips stacked, instead (1) larger 32K chip.
This is the original 32K mod drawing with comments by John Wilforth, plus some additions by me sometime later.
It does use (4) static ram chips stacked, instead (1) larger 32K chip.