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i now have an alternator which has a tach terminal on it. what sort of tach would run from this ? i assume a specific one. i also assume for it to work, it will need to run at the same speeds as it used to on the engine it was from. does anyone on here have any experience in this area ?
 

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Look for one that offers an alternator hookup.. Those will usually have a way to adjust the tach for the alternator you have, pulley ratio, etc. You'll usually need a photo tach or some other way to calibrate it initially.

Hit the search / FAQ, and you'll find a bunch of threads about Tachometers..
 
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