Sorry my mistake... my programmer was not working properly, which is why I was unable to use the 01A module to program EPROMS.... I have contacted needhams and they are fixing the problem.. Tim Drury wrote: > > >Should have come w/ 3 cards to do all 8 and 16 bit 27xxx,28xxx parts. > > And the third "family module" does PALs and GALs. > > -tim