Hi Bob from the MFR "Crystals are in resistance weld packages with nitrogen + helium atmosphere, dew point below minus 80 deg.C, tested on He-leak detector". Now, all the really good crystals I have here out of ovens look like glass on the bottom of the round cans.  Something different. On 13/12/2023 1:44 am, Bob kb8tq wrote: > Hi

Hi That’s not what you would want to use in an OCXO application if you want reasonable aging. Cold weld is what folks have been using for many decades. That’s what you are seeing with the glass bottoms …. Yes, they are more expensive. Bob > On Dec 13, 2023, at 5:12 AM, glenlist via time-nuts <time-nuts@lists.febo.com> wrote: > > Hi Bob > > from the MFR > > "Crystals are in resistance weld packages with nitrogen + helium atmosphere, dew point below minus 80 deg.C, tested on He-leak detector". > > Now, all the really good crystals I have here out of ovens look like glass on the bottom of the round cans. Something different. > > On 13/12/2023 1:44 am, Bob kb8tq wrote: >> Hi > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe send an email to time-nuts-leave@lists.febo.com