Has anyone come across this sort of situation before, and is there a solution?
27C64 EPROM that I want to read the contents out of... freshly pulled out of working equipment, so I presume the EPROM is working too. Read it with my ancient but trusty DSE EPROM programmer and... different read result each time! Perhaps the DSE programmer is a bit long in the tooth, so I bought a new Willem based EPROM programmer. Same result - random read results each and every time. I've never seen an EPROM do that before.
Any ideas?