Hi You can do the same thing with an AT as with an SC. They both exhibit the fundamental / third offset and tempo delta.
Bob On Aug 30, 2012, at 5:10 PM, "Rick Karlquist" <[email protected]> wrote: > Azelio Boriani wrote: >> Interesting this third overtone/fundamental*3 idea but what makes the >> third >> overtone not equal to the fundamental*3? Is the crystal operated in series >> or parallel resonance? >> > > That is where the special SC cut crystal comes into play. > It's not so much that the 3rd OT is on a different frequency, but > rather that it has a different and known tempco relative to the > fundamental, so it can be used as a thermometer. It would be > interesting to take a crystal out of a random 10811 and compare the > frequencies of the fundamental and 3rd OT vs temperature to see > if that crystal would accidentally make a good thermometer. > > Rick Karlquist N6RK > > > _______________________________________________ > 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.
