I always just used two gates of a 74LS04, two LEDs and two resistors.  In
fact, I have been known to build a logic probe into a project with a pin
to hook up a piece of wire for probing...  it doesn't get much simpler.
True, it lacks fancy pulse stretching and such...  suppose one could use a
74LS123 or a 556 or something if it were s big deal.

Dale
--
"Curiosity is the very basis of education and if you tell me that
curiosity killed the cat, I say only the cat died nobly."
          - Arnold Edinborough


On Tue, 9 Jul 2002, Bill & Pookie wrote:

> IS this a job for a pic device or what?  It could
> also be a pulser?  Hummmm....

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