Ok, first off, thanks Dave for the excellent page on crystals. I now
understand a bit more about this former "wild guess" art. I think
everyone should check it out.

Now to answer some of Spehro's questions...

> 1]      I assume you meant to say "I tried a higher value parallel
> *resistor*" , right?

Uh, yeah, that's my dumb typo!

> 2]      Yes the extra pole caused by the buffering could well cause it to
> misbehave.
>         Try it with the HCU04, even if you have to lash it up with a DIP
> socket etc.
>         It's only a few connections. Use a feedback resistor in the 1M
> range and
>         ~33pF caps.

Ok, it looks like I'm going to have to do another Digikey order. Don't
suppose you need anything Spehro? My board is entirely surface mount,
so I'll have to get in some surface mount HCU04s, new caps, and some
1M resistors. After browsing Digikey's catalog, it seems they have a
surface mount 11.2896MHz oscillator...I think I'll get one of those
too. That'll tell me immediately if the rest of my circuit works
enough to pursue the repair of the clock section.

> 3]      The recommended drive power for this tiny crystal is very low,
> around 100uW.
>         If you overdrive it, it may be destroyed or damaged.

How do you calculate the drive power? I know this probably seems like
a stupid question, and yes I do know the basic electrical laws, I just
don't know how to apply them to this situation. If I've damaged the
crystal (entirely possible), is it plausible that it'd misbehave by
going faster?

Thanks,

Josh
--
A common mistake that people make when trying to design something
completely foolproof is to underestimate the ingenuity of complete
fools.
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