Chip tester
I have (order year ago) TTL chip tester TES200. Not well from my point of view because support limited sets of chips. I think about new one, found several variants. TES200 (I have) TrolSoft - very good variant but too expensive from my point of view (aprox. 100 usd) Mega-IC-Tester - Opensource tester, based on arduino 2560. Cheap and usefull. Will try to build Mega-IC-tester. In case of unsuccessfull probably order one from TolSoft. ...