Has anyone had experience replacing and obsolete part with a micro controller?
Specifically I want to emulate a Texas Instruments TMS5501. I have a few old Cromemco S-100 computer boards that use this part. It seems to be made of unobtanium. Although some web sources say they have them, they never reply to inquiries. Yes, I know I won't be a drop in replacement. I plan on making a carrier for it.
Any input would be appreciated.