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'[EE]: Custom freq Xtals'
2003\02\08@140026 by Doug Butler

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I am trying to eliminate a PLL frequency synthesizer by simply switching 2
or 3 crystals into the circuit.  Where is a good source for custom crystals
in the 3MHz to 4MHz range?  SMT crystals would be preferred.  In my early
Ham days there were lots of places that made custom crystals for the Ham
bands in a week or so.  I can't seem to find any now.

Doug Butler
Sherpa Engineering

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2003\02\08@141237 by Geo

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On 8 Feb 2003, at 14:00, Doug Butler wrote:
spam_OUTPICLISTTakeThisOuTspamMITVMA.MIT.EDU

>  Where is a good source for custom crystals
> in the 3MHz to 4MHz range?  SMT crystals would be preferred.  In my early
> Ham days there were lots of places that made custom crystals for the Ham
> bands in a week or so.  I can't seem to find any now.

I have bought single customs at 10GBP each from:-
http://www.quartslab.com/

George Smith

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2003\02\08@150232 by Robert Rolf

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Digikey sells a line of 'programmable' crystals.
Basically they have an xtal, programmable divider and VCO in one
package. You can buy them blank, or preprogrammed. The programmer
is expensive.

Robert


Doug Butler wrote:
{Quote hidden}

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2003\02\08@153857 by Adi Linden

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> I am trying to eliminate a PLL frequency synthesizer by simply switching 2
> or 3 crystals into the circuit.  Where is a good source for custom crystals
> in the 3MHz to 4MHz range?  SMT crystals would be preferred.  In my early
> Ham days there were lots of places that made custom crystals for the Ham
> bands in a week or so.  I can't seem to find any now.

I purchased some crystals for older VHF radios from West Crystal
http://www.westcrystal.com/ in B.C.

Adi

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