Hi,

Some claims that MEMS will kill crystals. It will surely eat a good market share, but I think there is applications where MEMS is not mature enough compared to crystals.

Another aspect is that various forms of synthesis technologies now exists, so that a high frequency CMOS oscillator is locked and divided down. Works sufficiently well for a whole bunch of applications.

Again, your milage may vary and there is applications where you need the real deal or the right stuff.

Cheers,
Magnus


On 03/14/2017 01:06 PM, Bob Camp wrote:
Hi

On Mar 14, 2017, at 3:19 AM, Chris Albertson <[email protected]> wrote:

I think what he means is that the typical device sold today has four
terminals not two.  It looks like a crystal because it is inside a
little silver can but has four lead wires Power, ground and "output"
and the fourth lead might not be used.  It is an "XO" not an "X".

But I argue that every one of these device has a crystal inside.  So
they still make crystals, just you don't see them

These days, they may well have a MEMS resonator in them. No quartz and
no crystal. Good luck on the close in noise if that’s what they are doing ….

Bob


On Mon, Mar 13, 2017 at 12:07 AM, Bryan _ <[email protected]> wrote:
sorry, what do you mean by "complete oscillator" have outnumbered loose 
crystals?


-=Bryan=-


________________________________
From: time-nuts <[email protected]> on behalf of Richard (Rick) Karlquist 
<[email protected]>
Sent: March 12, 2017 4:38 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Bye-Bye Crystals

I got a job in 1975 to design Konel's first synthesized radio, which
was to obsolete their crystal controlled radios.  That's over 40 years
ago.  The other trend (not mentioned) is that since 20 years ago or
so, complete oscillator sales have vastly outnumbered sales of loose
crystals.

Rick N6RK

On 3/11/2017 8:51 PM, Bob Camp wrote:
Hi

International’s main business  was re-channeling non-synthesized radios and 
replacing
broken crystals in various pieces of com gear. It’s been a *lot* of years since 
the last of the
non-synthesized radios came out. The business probably has been dropping off 
pretty steadily
for many years …

Bob

On Mar 11, 2017, at 10:39 PM, jimlux <[email protected]> wrote:

On 3/11/17 4:30 PM, Scott McGrath wrote:
From the tone of the letter it sounds like the bank cancelled line of credit,

Or, he wants to retire and nobody wants to carry it on.  His dad started it in 
1950, the son picked it up in 1970.  It's 47 years later.


Which is stupid given that much of their line is military which is getting a 
huge boost in spending

Plenty of other crystal and oscillator manufacturers around.

There's also a change in what kinds of crystals are needed.   I suspect most things being built and 
designed today use the crystal as a "master oscillator" that is used to drive some sort 
of synthesis chain. The need for "I have to have a 12.345,324 Hz crystal" is going away.



On Mar 11, 2017, at 4:56 PM, Bryan _ <[email protected]> wrote:

Disappearing or manufacturing just moving overseas?. Video at the bottom is 
interesting, classic.


http://hackaday.com/2017/03/11/so-long-and-thanks-for-all-the-crystals/
[https://www.bing.com/th?id=OVF.LElrlkkbByR3K%2f6qfaeHjg&pid=Api]<http://hackaday.com/2017/03/11/so-long-and-thanks-for-all-the-crystals/>

So Long, and Thanks for all the 
Crystals<http://hackaday.com/2017/03/11/so-long-and-thanks-for-all-the-crystals/>
hackaday.com
There was a time when anyone involved with radio transmitting -- ham operators, 
CB'ers, scanner enthusiasts, or remote control model fans -- had a collection 
of ...






-=Bryan=-
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Redondo Beach, California
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