Re: Does a ][ power supply ever take out its mobo?

["jsnospam@cimmeri.com" <js@cimmeri.com>]

> Note that 85C is 185F, and I've never found a power supply case
> too hot to hold my hand on (which would be about 140F)...
>
> We always like to have things run cool, but they are well within
> their design specs.
>
> -michael

True, but I presume the hotter the average temp over time, the shorter
the average life of the electro caps on some logarithmic scale.

Question: if you use an 85c cap at 86c, what happens?  Is there a mean
failure rate at this temp?

A detail I forgot to mention on this 1978 ][ power supply is that it
was used only until Apple came out with a more RFI friendly version
sometime after.  So it's been sitting unused for at least 20 years.
This sit period really puts the whole "how often do the caps need a
reforming charge" question up in the air.. as all these caps so far
(save the one) test perfectly good though I've not tested for leakage
rate yet.

Electro caps are certainly statistical, unpredictable little shits,
aren't they...
~ J