[Boatanchors] Int'l Crystal Closing their doors in May

[COURYHOUSE at aol.com]

Perhaps  someone that knows those in charge there   should  check into 
seeing this  data is  saved in multiple locations  for  future reference?
 
Always  happy to help store data but remember...
 
data needs to be  saved  with geographical diversity
data needed  to be saved  with recorded format diversity
 
Ed Sharpe archivist for SMECC  _www.smecc.org_ (http://www.smecc.org)  
 
 
 
 
 
 
 
In a message dated 3/12/2017 6:51:41 P.M. US Mountain Standard Time,  
ranchorobbo at gmail.com writes:

Yes, and  that data archive they have for making crystals for vintage
gear is a big  big loss.
This means, don't break the oscillator crystals in your A line  sets!


Rob
K5UJ



On 3/12/17, manualman at juno.com  <manualman at juno.com> wrote:
> There are lots of companies that  make crystals. The problem is that many
> will not just make one crystal  for a specific frequency or if they would,
> the initial setup charges  would be out of this world.
>
> ICM was/is amateur friendly and  their pricing for single lot crystals was
> reasonable. Plus, unlike  many other companies, they kept a detailed
> documented history on many  of the vintage, and not so vintage rigs, as to
> the type of oscillators  the crystal would be used in, so they could
> tailor the crystal to  guarantee it would work in a rig. A specific
> crystal made at "X"  frequency by different manufacturers without knowing
> the specific  circuit parameters, does not guarantee that they would all
> work  properly, or at all, in the circuit. Tolerance, frequency stability,
>  load and shunt capacitance, resistance, drive level are parameters a
>  crystal manufacture needs to know in order to make a crystal at a
>  specific frequency.
>
> The last time I checked with Bomar, which  was years ago, their single
> price to make a crystal at a specific  frequency was in the stratosphere.
> I was also told that JAN doesn't  make specific crystals anymore but have
> not confirmed that. Sentry  Crystals, who also made single lot crystals,
> was bought by ICM back in  2005.
>
> Pete,  wa2cwa
>
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