On Sat, 03 Sep 2005 00:34:29 GMT, Brian Whatcott
wrote:

Get a cheap non contact tach - perhaps one that reads a tape strip on
a shaft. Try it with an induction motor off load - they spin about
3590 or 1592 rpm.

Brian Whatcott

Make that, nearly 3600 rpm or nearly 1800 rpm.

Brian