Re: gEDA-user: buzzing board

[DJ Delorie <dj@xxxxxxxxxxx>]

> It should. The other thing to check is ripple: if you're getting
> enough to make a ceramic sing, the ripple current might be a problem
> for Ta. Check the ripple voltage and frequency across the cap and
> use the resistance and capacitance ratings to deduce a current.

Yeah, the ripple voltage is pretty high, about 0.5vpp at 4.7uF and
14mA average draw.

Hence my other thought, which was a big electrolytic and a medium
sized cermic/tant.


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