4K Electronic Dizzy Tacho Fittment

[wil628]

So my 4k is in getting rebuilt. I purchased an electronic dizzy with inbuilt ignitor. I want to run a tacho and I'm wondering how do I go about wiring it in now I don't have dizzy points anymore? I've never wired in a tacho so I'm just trying to get my head around it. I'm sure I could just dump it on an auto elec but I want to do it myself.

 

any ideas/suggestions?

[7000rpm]

From memory the tacho gets a signal from the negative coil terminal

[wil628]

Seems almost too easy. Thanks man.