If anyone has a BUGTRAP IC Comparator, this toll also appears to compare PROMs. Very nice for checking soldered in PROMs (like an Asteroids C8 PROM). I wonder if it will also check RAM - never attempted that, but perhaps the next time I have a suspect RAM I'll pop the IC Comparator across it and see. Note the Comparator that I am using is the second generation version that checks up to 20 pin devices. Have a customer sending in a Death Race, I think the BUGTRAP IC Comparator and an Eprom Emulator could be used together to check in circuit PROMs that one does not have a known-to-be-good one handy! Svae desoldering a bunch of PROMs... Disclaimer: I don't work for BUGTRAP... John :-#)# _______________________________________________ Techtoolslist mailing list Techtoolslist@flippers.com http://seven.pairlist.net/mailman/listinfo/techtoolslist