[time-nuts] Gamma-ray and jitter
Magnus Danielson
magnus at rubidium.dyndns.org
Sun Nov 14 15:57:43 UTC 2010
On 11/14/2010 06:08 AM, Richard Karlquist wrote:
> FWIW, you will notice that there is a high value resistor shunting
> the crystal in the 10811. The reason for this is to drain off DC charge
> caused
> by cosmic rays hitting the crystal, according to the designers.
DC static tweaks the frequency of an SC-cut crystal somewhat. NIST used
this property to create a small rane linear modulator.
Cheers,
Magnus
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