On Sun, 22 Jan 2006, Peter Todd wrote:

> On Sun, Jan 22, 2006 at 11:16:23AM -0500, Spehro Pefhany wrote:
>> At 10:43 AM 1/22/2006 -0500, you wrote:
>>> Getting them to blow in such a way that you can SEE them might be
>>> interesting.
>>> A dot of smokeless powder in an adhesive might work.
>>
>> 'Caps' (the toy gun kind, not the capacitive kind) are cheap.
>
> They are, and they remind me of my childhood!
>
> I'm hoping to hermetrically seal the whole unit and have the insides
> purged with, say, argon or something to ward off oxidisation and
> condensation in the long run. So caps might mess up my pristene
> atmosphere a bit.

You don't *have* to use electrolytics. Solid electrolyte caps are 
available. Many are available in milspec and I think that they boast 10+ 
year shelf life.

All smaller caps can be ceramic or tantalum and the energy storage cap 
can be as above. Then there is nothing to vent.

Peter
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