I was also a member of an unofficial TX users group in Manhattan where we'd show off our latest inventions... a real sow n tell session of geeks hard at work.
I designed an 8255 IO and added a D/A to it as well for a teacher friend in Bklyn, Steve Kaye, who Id like to get in touch with again.
If anyone knows Steven, Please tell him Im here?
I still have all my TX stuff neatly stored in sealed boxes that I may open now that I see there is a users group and interested people still around. I also have tons of programs stored away as well as many Ive programed.
thanks for still showing interest,