Porsche 914 Tacho and Mallory Unilite Optical pickup?

Hi, I have a couple of 914 tachos and will be using a Mallory Unilite dizzy for my project and was wondering if these will be compatible i.e. will the tach register the signal from the dizzy correctly? as i really don't want to use an Autometer Tacho. Cheers Damo.

[ Edited on 1-6-2006 by 66deluxe ]

Bump anybody got an idea?

my smiths tacho runs from the coil on the neg terminal... When i fitted an electronic ignition there was no change..

You should be ok with the 914 tacho. The early 70's 911's with CDI ignitions need a tach adapter to create the signal (pulse) with standard points.
When you hook it up you will soon find out.

Have a look at this web site for 914 wiring diagrams - http://www.pelicanparts.com/914/914_electrical_diagrams.htm