Turning Archive 2007

Subject:
Techies & RPMs

Tim GC
>I was wondering if there was any way of measuring RPMs for those with variable speed systems with no RPM readout who may wish to know. I am not a Techie so please don't laugh too much ... I was wondering about things like rigging an old Car Ignition timing light etc. then having found the revs for a certain switch position scribe the switch plate or apply a mark of some description. I do not need it I have a 'guesstimated' chart supplied by the Maker.

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