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Old 04-21-2016, 09:30 PM   #9
ray_mcavoy
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Join Date: Nov 2009
Location: Sherman, ME
Posts: 2,379
Re: Tachometer Hookup Help - New Cluster!

You're welcome!

I don't think there is much risk of frying the tach by not using the filter. The filter basically just blocks higher frequency "noise" from the signal that could potentially cause erratic / jumpy tach readings and / or interfere with radio reception. But since you already have the filter, you might as well go ahead and use it to ensure a nice clean signal to the tach.
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