<Is there a socketed PLCC chip in the middle of the board? (the so-called
<GIME chip). If so, it's a 3.
Yes there is.
<The disk controller is basically a WD1773 + support circuitry. And a ROM
<containing the disk extensions to basic. Not trivial to build, but not
<impossible. You might find a second hand one somewhere.
The FDC is easy as I have 1793 and 8229(glue chip). The rom is a show
stopper. I'll have to keep an eye open.
Allison