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-   -   Simple Tach Question (http://forums.pelicanparts.com/porsche-911-technical-forum/272414-simple-tach-question.html)

JamesHamm 03-19-2006 02:21 PM
Simple Tach Question
 
I'd just like to know if I can use a 74 tach in an 80SC. I had a friend give one to me and before I throw it in, just thought I'd ask the "experts" on Pelican if there would be any problems between the two.

James....

svandamme 03-19-2006 02:36 PM
yeah , that'll work
i have a 73 tach working of an MSD output signal , no problem whatsoever...

304065 05-03-2006 11:28 AM
Stijn,

Can you verify that the '73 tach runs off the 12v square wave signal from the side of the MSD box? Anything else in the circuit? No tach adapter?

svandamme 05-03-2006 11:57 AM
works like that on mine, no adapters
might not work on your 66 but your 71 probably will work fine with it


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