WoW . I don't know if I'm the first nut to see this but it was probably our own Jim Lux I just saw on CBS's Innovation Nation -------------------------------------------- On Sat, 1/21/17, jimlux <jim...@earthlink.net> wrote:
Subject: Re: [time-nuts] 10MHz to 25MHz To: time-nuts@febo.com Date: Saturday, January 21, 2017, 7:25 AM On 1/20/17 7:10 PM, Bob Camp wrote: > Hi > > There are several other materials that you can make crystal resonators out of that > are piezo electric. Some of them can give you much higher Q. This comes with a whole > raft of other issues. Langesite is one of the more common materials you see people > playing with. It is common enough that I’ve actually played with it myself. The simple > answer is that when you look at cost, Q, and stability (aging, ADEV, temperature) — > it is tough to beat quartz. If you have a few hundred thousand dollars, you can play > with great big chunks of Sapphire. Toss in a bit of this and a bit of that and you can get a > pretty amazing oscillator. That device may (or may not) be < $1,000,000 depending > on how you do the accounting and how many parts you spread the costs over. would not a true time nut grow their own sapphire? Realistically, isn't it all about the crystal lattice.. SiO2 vs Al2O3 vs Lanthanum Gallium Silicate vs Lithium Niobate WHat makes a "good" material? I would think the ability to grow a very uniform crystal is part of it, but are certain crystal forms better than others? _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.