[time-nuts] Bye-Bye Crystals

[Bob Camp]

Hi

There also was an intermediate phase between channel frequency -> crystal frequency -> you buy a crystal and synthesizers.
My early fun and games at Motorola involved designing TCXO’s and OCXO’s that had non-replicable crystals in them. We shipped
them as a fully sealed unit. The compensation on them was very specific to the crystal involved. The assembly was such that
replacing the crystal likely broke the part in some way. At the very least it required you to re-weld the case on the TCXO’s. 

So yes, in this context (as opposed to the market in general) radios based on complete oscillators dominated a *long* time ago. 

Bob


> On Mar 13, 2017, at 3:07 AM, Bryan _ <bpl521 at outlook.com> wrote:
> 
> sorry, what do you mean by "complete oscillator" have outnumbered loose crystals?
> 
> 
> -=Bryan=-
> 
> 
> ________________________________
> From: time-nuts <time-nuts-bounces at febo.com> on behalf of Richard (Rick) Karlquist <richard at karlquist.com>
> 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 <jimlux at earthlink.net> 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 _ <bpl521 at outlook.com> 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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