> >You can check this with a hair dryer. Measure the effect > >of a 10 C rise and then extrapolate back to 0.1 or 0.01C > >to see what the result of making an oven would buy you.
> One problem with that approach is that crystals that are not intended > for oven operation are optimized for minimum frequency change over 0-50 > or some other "normal" environment temperature range, and at 75 degree C > or wherever you are going to run the oven at, the temperature > sensitivity might be much greater than around 25 degrees. So even though > the oven might reduce the temperature variation by a factor of 10 or > better, the overall frequency sensitivity may not improve by the same > factor.. I agree. And I should have clarified - one uses a hair dryer to generally heat the ambient air nearby the device in question. You can use a thermometer to sense the external or internal case temperature to limit the temperature rise to 10 C or something sane. Do not, of course, blast the poor thing with 1500W of direct heat. /tvb _______________________________________________ time-nuts mailing list [email protected] https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
