Renovation of a tried and tested commercial design. Not my own design!
I have the manual and circuit diagram for this board, but only a non-working board with no PAL chips. The ones in the photo are dummies for illustration only.
I'm currently looking for a working example. This was a best-seller but I have not seen any on eBay. So restoring this board will probably be a PAL designing exercise.
No firmware available, but I would like to get it running BBC BASIC.
Enjoy this project?