Hi Ok, when you wrote the specification for your crystals what was the tolerance on the angle for those crystals? What did the suppliers who quoted to your spec say about the angle tolerance you specified? When they shipped against your volume requirements how did they do against the specification? When your incoming QA tested the crystals what did they find? When you put the crystals into production oscillators and tested the result how did they perform?
Bob > On Jun 4, 2017, at 11:09 AM, Donald E. Pauly <[email protected]> wrote: > > I've bought dozens of them over the years and talked to crystal > engineers for tens of hours. I watched them plated and tuned at a > crystal filter company in Phoenix. I own Virgil Bottom's book on the > subject and understood half of it. > > πθ°μΩω±√·Γλ > WB0KVV > > > ---------- Forwarded message ---------- > From: Bob kb8tq <[email protected]> > Date: Sun, Jun 4, 2017 at 5:15 AM > Subject: Re: [time-nuts] HP5061B Versus HP5071 Cesium Line Frequencies > To: Discussion of precise time and frequency measurement <[email protected]> > Cc: "[email protected]" <[email protected]>, "Donald E. Pauly" > <[email protected]> > > > Hi > > Have you ever tried to actually *buy* a crystal built to a > specification? There is a > tolerance on them. That has a profound impact on what you can *buy*. > > Bob > _______________________________________________ > 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.
