CEM/MOTM-410 1999-07-20 by Paul Schreiber 1) For the first wafer run, I'd get about 3800 good chips. But for the 2nd run, I'd get about 14,000 (about 80 cents each!). 2) The MOTM-410 is a direct, exact copy of the Kork PS-3100 filter. Paul S.