On Tue, Jul 31, 2012 at 1:26 PM, Neil <picdude3@narwani.org> wrote:

> I dug up and old non-working unit and grabbed the tantalum caps from
> that.  Swapping *both* got rid of the clicking.  Wondering if I can add
> some output load instead.
>
> The word "piezo" added to my google search now gives me several links
> explaining it (piezoelectric effect of capacitors)... quite
> interesting.  Since this is related to mechanical strain within the
> capacitors, I'd like to eliminate it.  I'll experiment with adding some
> output load, otherwise I'll have to order some tantalums.
>
> Thanks,
> -Neil.

What dielectric grade are your ceramics?

--=20
Martin K.
--=20
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