I was going to respond and say this is something that is pretty easy to
test, but I think Casey beat me to the punch with a bit of empirical
evidence. If you look at the RRC2/3 series altimeters, they contain a big
capacitor specifically to continue to provide power in the case of a
brownout that used to happen on their old altimeters when the right
combination of ematch and battery created an extreme short that exceeded
the batteries limits, including 9 volt batteries.

The easy answer is to always use a separate pyro circuit, but that isn't
always feasible.


On Mon, Sep 14, 2020 at 7:49 PM Bdale Garbee <[email protected]> wrote:

> Alex Zoghlin <[email protected]> writes:
>
> > Would be interesting if people reported the e-matches and batteries they
> > used to see if we could understand what different combinations
> > might cause the brownouts in the circuit.
>
> I don't believe these are "brownouts" in the sense you mean.  It's much
> more likely they're intermittent connections in wiring.
>
> Bdale
>
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