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- Wed Jul 06, 2016 4:47 pm
- Forum: Sensors
- Topic: Tapping existing Tach line
- Replies: 11
- Views: 19815
Hi i am new user here and by profession i am a hardware design engineer. I think my best bet might be to take the Tach signal directly from the 12v square wave off the MSD ignition controller. It worked with my old ChaseCam logger. I was just worried about the 12v v 5v mismatch.Go ahead and connect ...