On Wed, Aug 19, 2020 at 6:14 PM Jeffrey Birt <[email protected]> wrote:

>
>
> With capacitors the hour rating is based on steady state temperature at a
> given (maximum working voltage?) condition. Big failure modes for
> electrolytic caps other than very high heat, are voltage spikes and
> vibration.
>

My working theory on the humidity is that the seals on the AE caps fail
(helped here by the handling inherent in being a portable computer)
allowing humidity to enter. Now the acid/paper mixture has more water than
it should and begins to leak as thermal cycles pass.

-Josh

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