Heh, that's great. Interesting that at least some CMOS parts will work. I may have had some bad chips, but the same ones that failed in an 8566B worked fine in a 494AP.
Not knowing what happens if an address line toggles in the middle of a read cycle, I wonder if it'd be a good idea to tie those floating address lines to ground or Vcc... -- john, KE5FX > > In message <[EMAIL PROTECTED]>, "John > Miles" writes: > > >Poul, if you need a set of them burned for you, drop me a line > >off-list with your address... be glad to send you some. > > Thanks for the offer, but I managed to wing it. > > >Note that the part number may cross to a 27C256, but I have had no luck > >trying to use CMOS EPROMs in the HP 8566B/68B analyzers. > > Well here is a different data-point for you: ... > > _______________________________________________ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts