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Registered
Join Date: Oct 2000
Location: South of Atlanta, GA, USA
Posts: 399
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Tach connections Help!
I am installing an old '67 912 tach into a 70 karman Ghia. I need to find out the following three connections in the center of the tach. There are three wire connectors marked: (+12), (1) and (-) (minus sign)
Please help me and tell me where to connect them to 
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09-28-2005, 08:45 PM
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Join Date: Nov 2003
Location: Ags, Mx or McAllen, TX
Posts: 2,792
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look this
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09-28-2005, 09:34 PM
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Assuming that we are working here without known circuit diagrams etc.
+12V a bit obvious, main battery circuit once ignition is turned on, meter your other dash dials / wires to locate a 12V feed. (-) is ground, again meter for ground connection wire or install a ground link yourself. 1 remains your lead back to the negative link on the coil which sends the tach signal to the tacometer.
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POKDUB Porsche 911E |
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09-29-2005, 02:15 AM
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Join Date: Oct 2000
Location: South of Atlanta, GA, USA
Posts: 399
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Thank you for the responses, now I got it!! you all have a great day!!! Jose
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09-29-2005, 05:24 AM
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1969 Porsche 911E 2.2Ltr
