Compaq Portable II PSU - value of C13?

Bill Degnan billdegnan at
Sat Oct 3 16:35:42 CDT 2020

that's a good question.  I'd like to get more info on that supply as well.

On Sat, Oct 3, 2020 at 5:34 PM Jules Richardson via cctalk <
cctalk at> wrote:

> Hi all,
> Does anyone happen to know the value of C13 in a Compaq Portable II power
> supply? It's a small-ish tantalum that lives next to the heatsink between
> U6 and U7 - although mine doesn't live any more, having just roasted
> itself
> in spectacular fashion.
> Quite possibly there's some other fault at play, but on the other hand it
> may have just been its time; tantalums in vintage stuff seem a little
> prone
> to failure.
> cheers
> Jules

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