KF9VP here, sorting through 200+ messages from the list.
I must admit, I've found most of my computers at hamfests, but things have
been getting rather rare (and sporadic) lately.
Yes, about 5 years ago there was a peak (in the UK) of classic computers
turning up at rallies. The last couple of rallies I've been to have been
rather disapointing - a lot of modern-ish PC's (486's, etc), and very few
machines of interest. I did pick up a few interesting bits (including a
Sharp machine that seems to have run MS-DOS (or possibly CP/M86) but which
certianly wasn't a PC-clone), but the really interesting stuff (boxes of
DEC boards, Intellecs, S100 stuff, etc) seems to be no more.
Still, keep looking. You never know what will turn up next...
The gates in my computer are AND,OR and NOT, not Bill