Post by thread:[EE]: Custom freq Xtals

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 -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.

On 8 Feb 2003, at 14:00, Doug Butler wrote: spam_OUTPICLISTTakeThisOuTMITVMA.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 -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.

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}> > 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 > > -- > http://www.piclist.com hint: The PICList is archived three different > ways. See http://www.piclist.com/#archives for details. -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.

> 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 -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.