There was a thread on this on COMP.OS.CPM. Also, there is a lot of information on this on Jim Battle's web site. The last known source of replacement foam pads for Keytronics keyboards ... they may still be available ... was: Mike Stephens Mil-Key Corp. 10406 E 6th Ave Spokane, WA 99206 509-891-6425 m-corp at qwest.net There was a discussion on comp.os.cpm from a guy who successfully made his own replacement keypads, he even prepared a PDF showing how it was done (complete with photos). It's possible, but it's a LOT of work.