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Tach lead output

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Old 10-21-2005 | 04:51 AM
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Default Tach lead output

Does anyone know what comes out of the tach lead from the enginge. Is it a square wave, pulses?, What voltage peak to peak? Frequency, does it send one pulse per revolution or per firiing of the inividual plugs?
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Old 10-21-2005 | 07:05 AM
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Default Re: Tach lead output

If it is a pointless distributer it should be a square wave, one per cylinder.
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