Hi The crystal in the 10811 could also get charged by leakage through the blocking caps in series with it. Sort of a "who leaks more" race between the caps, the crystal, and maybe the PC board.
Bob On Nov 14, 2010, at 12:08 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. > > Rick Karlquist > N6RK > > On Sat 13/11/10 2:48 PM , "[email protected]" wrote: > > In the very recent days it has been discovered a previously unknown > feature of our galaxy, that is the presence of two giant bubbles > which appear to be gamma-ray sources. > > See > > http://www.nasa.gov/mission_pages/GLAST/news/new-structure.html > [1]">http://www.nasa.gov/mission_pages/GLAST/news/new-structure.html > > After reading this, I have revieved some old data of mine, which shoved > that the noise in a long term temperature measurement is higher when my > observing site is in view of that structure. Now I'm rather > convinced that there could be a correlation between my observations and > the above mentioned new findings, and I believe that the noise is > generated by the measuring setup in response to something > linked to the bubbles. > > Hence I'm wondering if that stimulus could also affect the jitter in > high performance oscillators. > > More precisely, I would ask time-nuts whether any sidereal periodicities > have ever been noticed in jitter measurements. > > Thanks, > Antonio I8IOV > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts [2] > and follow the instructions there. > > > > Links: > ------ > [1] http://www.nasa.gov/mission_pages/GLAST/news/new-structure.html > [2] > http://webmail.sonic.net/parse.php?redirect=https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
