bad engine performance today

There are several ways they can work and most of them do in fact do the math
in one way or another. But something has to sense the revs.

How would weakening magnets affect a tach? If they get so weak they
start missing revs (that are counted individually), I would expect the
tach to be very erratic at that point.

Jose
--
Get high on gasoline: fly an airplane.
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