David Minkler wrote:

>> Each step is 3.333uS, BTW (6*3.333 = 20mS = 50Hz).

> Do you mean uS or mS?  You use both.

<detail mode>
He probably meant neither uS nor mS, but rather ms (judging by the 50 Hz).
See for example <http://physics.nist.gov/cuu/Units/units.html> -- search
for "time" and "electric conductance" on this page :)
</detail mode>

Gerhard
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