kb8tq at n1k.org
Thu Jun 8 20:08:13 EDT 2017
In this case hydrogen + oxygen (like from oxidized metal) goes to H20. You very much do
not want water running around inside your crystal holder… Helium is inert.
> On Jun 8, 2017, at 7:18 PM, Charles Steinmetz <csteinmetz at yandex.com> wrote:
> Bob wrote:
>> You really want to use Helium. Hydrogen is a bit reactive.
> I don't think it's a problem. The alternators on mains powerplants are filled with Hydrogen under fair pressure, and the internal materials and conditions are not that different from a crystal oscillator inside an oven. (IH was chosen both for its heat conduction and its low windage. Helium is enough worse on both counts that it was a non-starter. Of course, windage isn't important in a crystal oscillator.)
> In any case, it can't be any worse than filling space capsules with Oxygen....
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