> This reminds me of one of the Galaga cures
> from back in the 80's, it warned that you HAD TO use a TI 74LSXX(I
> forget the exact chip) in the clock circuit otherwise the game is not
> reliable! Other manufacturers apparently had slightly different timing
> and would be off enough to cause intermittant problems.
>
Yep. Some of those long device chains caused problems with propogation
delay in Atari stuff too. Check out the "Atari Documentation" on my old
webpage-- http://www.e-volve.net/~clay/game_tech.html
(In "Problem #3" it would seem a faster 2114 would actually help-- since
450ns of the timing loop is the 2114 and they were about 70ns over...)
-Clay
