While surfing the 'net, I found this adaptor
(http://www.6502.org/mini-projects/816conv/conv.html) that replaces
the 6502 with a 65C816 processor. I have not done any research on the
65C816, or for that matter the 6502 and its variants, but is there a
way to replace the Apple's 1MHz processor with something faster?

Rob J.