[sdiy] Give me an 'A' !!

[Tim Ressel]

Thanks for all the ideas! 

One nice thing about the 5.0688M solution is you can
get the highest 'A'. First divide by 45 (/3, /3, /5),
then a divider chain gives all the 'A's.

Any thoughts on a guitar-tuner-like device? How does
one do that whole frequency deviation thing? Over 7
octaves??

--TR

--- Ian Fritz <ijfritz at earthlink.net> wrote:
> 
> These folks have 4.40 MHz xtals, and  will also
> grind to order:
> 
> http://www.kenselectronics.com/lists/cbxtal.htm
> 
>    Ian
> 
> 
> 
> At 09:57 PM 10/16/2002, Glen wrote:
> >At 08:27 PM 10/16/02 , Ian Fritz wrote:
> > >I bought a custom 4.40 MHz xtal and an osc kit
> from a ham-radio type source
> > >many years ago. You might check in that
> direction.
> > >
> > >   Ian
> >
> >I bet that 33 mHz, or perhaps 11 mHz might be
> standard items in some
> >crystal catalogs. 33mHz is a common frequency in
> computer circuitry. I know
> >that a lower frequency might need a less
> complicated divider circuit, but
> >I'm not sure if you can find a 1.1 mHz crystal
> quite as easily.
> >
> >As Ian suggested, it is certainly possible to have
> crystals made to order,
> >even in single unit quantities. If I recall
> properly, the prices aren't too
> >bad either.
> >
> >
> >later,
> >Glen Berry
> 


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