My company makes a part which attaches to the alternator output, designed t=
o
simulate a tachometer signal for remote starters. I doubt it's useful to th=
e
OP though. (This part tends to only be used on large diesel engines)

http://www.directedstore.com/manuals/454T.pdf


On Wed, Feb 16, 2011 at 7:23 AM, Michael Watterson <mike@radioway.org>wrote=
:

> Is it possible to detect the frequency of the Alternator with a small
> sensor coil near it?
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