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Tach Signal To Constant DC

Printed From: the12volt.com
Forum Name: General Discussion
Forum Discription: General Mobile Electronics Questions and Answers
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=112895
Printed Date: May 09, 2025 at 8:09 AM


Topic: Tach Signal To Constant DC

Posted By: oose
Subject: Tach Signal To Constant DC
Date Posted: April 03, 2009 at 3:38 PM

this is for a 92 Mazda B2200,
I need a tach signal converted to 12V constant, non pulsed - is there a converter or does anyone know of a diagram to make one?
Peace!



Replies:

Posted By: ckeeler
Date Posted: April 03, 2009 at 4:12 PM
if you only want voltage when the engine is running why not just use  the oil pressure switch to trigger a relay? if your truck uses a sender and not switch, you can get a N/O oil pressure switch with what ever size pipe thread you want at any parts store along with any fittings to plumb it in.



Posted By: oose
Date Posted: April 05, 2009 at 8:25 AM
I was thinking of that,
it might be easier if I went that direction.
Thanks



Posted By: KPierson
Date Posted: April 05, 2009 at 12:41 PM

To convert a tach signal to a digital signal you just need a frequency switch - do a Google search they are pretty cheap and easy to come by.



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Kevin Pierson


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