Any chance, you still have any software for the BLIT?
See
http://www.brouhaha.com/~eric/retrocomputing/att/5620/5620_faq.html
for information and software.
Warren, maybe that software should make its way into the
TUHS archives too?
I too used a blit for a while. It sure could easily kill a vax/780.
But I really liked it. :-)
Arnold