On 11/30/05, Russell McMahon <apptech@paradise.net.nz> wrote:
>
> >> 55ms (or 55.55555ms to be more exact)  is about 18 pulses per
> >> second.
>
> > ... 4.772727 MHz.
>
> which was chosen because that's the NTSc color burst frequency and the
> crystals are cheap.


    I thought that was PAL.

James
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