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Custom Quartz crystals

C
cdelect@juno.com
Sat, Aug 13, 2022 5:55 PM

Hi,
I used to be able to buy custom quartz crystals from international
crystal but they have gone out of business. :(
I'm looking for an AT cut for an OCXO at 65 degrees C, 5th overtone
60Mhz.
Anyone know where to find such a beast!

Cheers,

Corby

Hi, I used to be able to buy custom quartz crystals from international crystal but they have gone out of business. :( I'm looking for an AT cut for an OCXO at 65 degrees C, 5th overtone 60Mhz. Anyone know where to find such a beast! Cheers, Corby
R(
Richard (Rick) Karlquist
Sat, Aug 13, 2022 6:12 PM

https://crovencrystals.com/

Rick N6RK

On 8/13/2022 10:55 AM, Corby Dawson via time-nuts wrote:

Hi,
I used to be able to buy custom quartz crystals from international
crystal but they have gone out of business. :(
I'm looking for an AT cut for an OCXO at 65 degrees C, 5th overtone
60Mhz.
Anyone know where to find such a beast!

Cheers,

Corby


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To unsubscribe send an email to time-nuts-leave@lists.febo.com

https://crovencrystals.com/ Rick N6RK On 8/13/2022 10:55 AM, Corby Dawson via time-nuts wrote: > Hi, > I used to be able to buy custom quartz crystals from international > crystal but they have gone out of business. :( > I'm looking for an AT cut for an OCXO at 65 degrees C, 5th overtone > 60Mhz. > Anyone know where to find such a beast! > > Cheers, > > Corby > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe send an email to time-nuts-leave@lists.febo.com >
BK
Bob kb8tq
Sat, Aug 13, 2022 10:25 PM

Hi

Bliley would be the other likely candidate.

https://www.bliley.com/crystals_transducers https://www.bliley.com/crystals_transducers

Neither one is likely to be “low cost”. I would not be at all surprised to find
somebody in Asia willing to sell you something (possibly at a lower price).
Just who and how to get in touch with them …. no idea.

As idiotic as it sounds, the lowest cost approach is likely to be buying a
60 MHz OCXO on eBay (assuming you can actually find one) and tearing
it apart for the crystal ….

Bob

On Aug 13, 2022, at 10:12 AM, Richard (Rick) Karlquist via time-nuts time-nuts@lists.febo.com wrote:

https://crovencrystals.com/

Rick N6RK

On 8/13/2022 10:55 AM, Corby Dawson via time-nuts wrote:

Hi,
I used to be able to buy custom quartz crystals from international
crystal but they have gone out of business. :(
I'm looking for an AT cut for an OCXO at 65 degrees C, 5th overtone
60Mhz.
Anyone know where to find such a beast!
Cheers,
Corby


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To unsubscribe send an email to time-nuts-leave@lists.febo.com


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Hi Bliley would be the other likely candidate. https://www.bliley.com/crystals_transducers <https://www.bliley.com/crystals_transducers> Neither one is likely to be “low cost”. I would not be at all surprised to find somebody in Asia willing to sell you something (possibly at a lower price). Just who and how to get in touch with them …. no idea. As idiotic as it sounds, the lowest cost approach is likely to be buying a 60 MHz OCXO on eBay (assuming you can actually find one) and tearing it apart for the crystal …. Bob > On Aug 13, 2022, at 10:12 AM, Richard (Rick) Karlquist via time-nuts <time-nuts@lists.febo.com> wrote: > > https://crovencrystals.com/ > > Rick N6RK > > On 8/13/2022 10:55 AM, Corby Dawson via time-nuts wrote: >> Hi, >> I used to be able to buy custom quartz crystals from international >> crystal but they have gone out of business. :( >> I'm looking for an AT cut for an OCXO at 65 degrees C, 5th overtone >> 60Mhz. >> Anyone know where to find such a beast! >> Cheers, >> Corby >> _______________________________________________ >> time-nuts mailing list -- time-nuts@lists.febo.com >> To unsubscribe send an email to time-nuts-leave@lists.febo.com > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe send an email to time-nuts-leave@lists.febo.com
LJ
Lux, Jim
Sat, Aug 13, 2022 10:36 PM

On 8/13/22 11:12 AM, Richard (Rick) Karlquist via time-nuts wrote:

now part of Wenzel, but I think they still operate independently.

Rick N6RK

On 8/13/2022 10:55 AM, Corby Dawson via time-nuts wrote:

Hi,
I used to be able to buy custom quartz crystals from international
crystal but they have gone out of business. :(
I'm looking for an AT cut for an OCXO at 65 degrees C, 5th overtone
60Mhz.
Anyone know where to find such a beast!

Cheers,

Corby


time-nuts mailing list -- time-nuts@lists.febo.com
To unsubscribe send an email to time-nuts-leave@lists.febo.com


time-nuts mailing list -- time-nuts@lists.febo.com
To unsubscribe send an email to time-nuts-leave@lists.febo.com

On 8/13/22 11:12 AM, Richard (Rick) Karlquist via time-nuts wrote: > https://crovencrystals.com/ now part of Wenzel, but I think they still operate independently. > > Rick N6RK > > On 8/13/2022 10:55 AM, Corby Dawson via time-nuts wrote: >> Hi, >> I used to be able to buy custom quartz crystals from international >> crystal but they have gone out of business. :( >> I'm looking for an AT cut for an OCXO at 65 degrees C, 5th overtone >> 60Mhz. >> Anyone know where to find such a beast! >> >> Cheers, >> >> Corby >> _______________________________________________ >> time-nuts mailing list -- time-nuts@lists.febo.com >> To unsubscribe send an email to time-nuts-leave@lists.febo.com >> > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe send an email to time-nuts-leave@lists.febo.com >
GC
Gary Chatters
Sun, Aug 14, 2022 1:00 AM

Two sources that indicate they do the sort of crystals that ICM did for
radios are:

Klove: https://www.klove.nl/quartslab/

or its main webpage at: https://www.klove.nl/

And Bomar:  http://bomarcrystal.com/

Disclaimer: I have no direct experience with either myself.  A friend
was successful buying a crystal from QuartsLab (With an S)(Now Klove)
for a small transceiver.  Bomar has been around for a long time.  I did
have a service shop fix a receiver of mine and they got a crystal from
Bomar.

gc

On 8/13/22 13:55, Corby Dawson via time-nuts wrote:

Hi,
I used to be able to buy custom quartz crystals from international
crystal but they have gone out of business. :(
I'm looking for an AT cut for an OCXO at 65 degrees C, 5th overtone
60Mhz.
Anyone know where to find such a beast!

Cheers,

Corby


time-nuts mailing list -- time-nuts@lists.febo.com
To unsubscribe send an email to time-nuts-leave@lists.febo.com

Two sources that indicate they do the sort of crystals that ICM did for radios are: Klove: <https://www.klove.nl/quartslab/> or its main webpage at: <https://www.klove.nl/> And Bomar: <http://bomarcrystal.com/> Disclaimer: I have no direct experience with either myself. A friend was successful buying a crystal from QuartsLab (With an S)(Now Klove) for a small transceiver. Bomar has been around for a long time. I did have a service shop fix a receiver of mine and they got a crystal from Bomar. gc On 8/13/22 13:55, Corby Dawson via time-nuts wrote: > Hi, > I used to be able to buy custom quartz crystals from international > crystal but they have gone out of business. :( > I'm looking for an AT cut for an OCXO at 65 degrees C, 5th overtone > 60Mhz. > Anyone know where to find such a beast! > > Cheers, > > Corby > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe send an email to time-nuts-leave@lists.febo.com >
G
ghf@hoffmann-hochfrequenz.de
Sun, Aug 14, 2022 1:18 AM

Am 2022-08-14 0:25, schrieb Bob kb8tq via time-nuts:

Bliley would be the other likely candidate.

https://www.bliley.com/crystals_transducers

Neither one is likely to be “low cost”. I would not be at all surprised
to find
somebody in Asia willing to sell you something (possibly at a lower
price).
Just who and how to get in touch with them …. no idea.

Someone I know organized a group buy at Laptech in US/Ca.
https://rfx.co.uk/products    >

Prices went from €/$ 32 for simple AT to €/$ 96 for 5th SC at 98 MHz.
Problem was the minimum order quantity of 10 for the simple ones and
15 for the more interesting and not-so-cheap ones, and that was for
a bunch of types in parallel. AT at high overtone and 60°C is probably
not on the cheap side.

The types that I was interested in did not meet the minimum order
quantity,
but it seems those that did were top-notch.

As idiotic as it sounds, the lowest cost approach is likely to be
buying a
60 MHz OCXO on eBay (assuming you can actually find one) and tearing
it apart for the crystal ….

That's how I got a nice 5 MHz SC from a semi-defective Morion MV-89A.
Morion is currently not a source, only for Old Stock.

I don't know where the thread starter is from, but I heard it was said
that you can get Croven in Europe from Axtal.

Cheers, Gerhard

Am 2022-08-14 0:25, schrieb Bob kb8tq via time-nuts: > Bliley would be the other likely candidate. > <https://www.bliley.com/crystals_transducers> > > Neither one is likely to be “low cost”. I would not be at all surprised > to find > somebody in Asia willing to sell you something (possibly at a lower > price). > Just who and how to get in touch with them …. no idea. Someone I know organized a group buy at Laptech in US/Ca. < https://rfx.co.uk/products > Prices went from €/$ 32 for simple AT to €/$ 96 for 5th SC at 98 MHz. Problem was the minimum order quantity of 10 for the simple ones and 15 for the more interesting and not-so-cheap ones, and that was for a bunch of types in parallel. AT at high overtone and 60°C is probably not on the cheap side. The types that I was interested in did not meet the minimum order quantity, but it seems those that did were top-notch. > As idiotic as it sounds, the lowest cost approach is likely to be > buying a > 60 MHz OCXO on eBay (assuming you can actually find one) and tearing > it apart for the crystal …. That's how I got a nice 5 MHz SC from a semi-defective Morion MV-89A. Morion is currently not a source, only for Old Stock. I don't know where the thread starter is from, but I heard it was said that you can get Croven in Europe from Axtal. Cheers, Gerhard