Date   : Sun, 03 Jun 1984 20:25:00 EDT
From   : RG.JMTURN%MIT-OZ@MIT-MC.ARPA
Subject: Apple ALS CP/M card 74S109 vs 74F109

I find it interesting that someone would find a Fairchild F series chip
in an Apple. F series is faster than S (1ns gate delay, typical), and
uses less power. It is considerably more susceptable to noise, however.

Since F is more expensive and harder to get than S, I can't understand
why you'ld see F used. However, it might explain the problems he was having.

                                       James Turner
                                       RG.JMTURN@OZ%MIT-MC