Re: Ah...
Believe it or not my Speccy clone actually came with the full circuit diagram in its manual
The BBC B Advanced User Guide came with not just a circuit diagram, but there was also the better part of a chapter explaining the more advanced functions (like the processor speed switching from 2MHz to 1MHz for slower peripherals), and described adding interfaces. It also detailed every sodding OS function.
Biting the hand that feeds IT
