[time-nuts] backfill
Charles Steinmetz
csteinmetz at yandex.com
Thu Jun 8 19:18:04 EDT 2017
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....
Charles
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