[sdiy] 440Hz Reference Oscillator.

[Ian Fritz]

The "A" you get from the telephone co is accurate.  You could probably run 
it through a filter to get a sine.

   Ian



At 12:22 PM 6/6/2006, Tim Parkhurst wrote:

>I know it wouldn't be the most portable solution, but would it help if
>someone just posted some WAV or even MP3s of 440Hz sine waves? Someone
>with a very stable, lab style function generator could do it easily.
>Maybe even post octaves above and below. It wouldn't be the best
>solution in the world, but it would be a handy tuning reference. I
>know I'd appreciate having a known 440Hz tone that I could access.