On Thu, 14 Feb 2002, Jozsef Laszlo wrote:
> Hi,
>
> Yes, it seems to be an 74LS05, witch is a normal (not ST) TTL inverter, like
> this:
OK, thanks *very* much! It could have been a 74LS06, which is the high
voltage version. This probably makes a difference in the output rise and
fall times.
The monitor circuit is terribly "analogue" ;)
Richard
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