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Tachometer not getting signial.

Boobie said:
Thank you Joe ! And CarMech ! CarMech. It makes me feel good for what you said in your come back. Proves the tachs run off of AC voltage.
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I stand corrected. Looking at the tach circuitry, I found that the conversion from AC to DC pulses happens inside the tach with a switching transistor and diodes. So the AC input off the stator lead works, as carmech says. Thanks.
 
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