I'll second that. I picked up a used HP 16xx
something or other with 4
pods of 8 inputs each, and it's been so useful debugging my home
designs. An alternative would be a PC parallel port based model, but
they seem kind of cheesy compared to a nice, solid, HP unit.
I used an (older?) HP Logic Analyzer that appeared to be an embedded
Macintosh; I never opened it up to make that determination, though,
as it was on lease.
Are these the vintage of units that are being dumped?
-dq