I cant find my info for how to do this, but it was not hard. Does anyone have this info? Thanks.

has to be reballisted. Palo Alto does it. You could call Hartmut and he will tell you.

Isn't Hartmut at North Hollywood? Probably be cheaper and faster to find a good used 911 tach.

Thats just it, IIRC, it was just the addition of a resistor. I cant find the value needed and location, but it is a quick job and cheap to do.

Mike, wonder if Pelican site mentions that. I've read a post or sompin' that describes the resistor method. course I'm getting old and senile too

I need to know too. If you find the information, would you please post it here

If you need a /6 tach I probably have one you could have for shipping...

though I have been cleaning up my basement and garage lately... and tossing truck loads of crap...

lemme know

Tim,
I'll take you up on that. But, I still want to know the answer to my question. I will likely know when I get the 911 one from you

There is a down and dirty way to do it, I will look in my notes in the shop. We started just replacing the guts with new ones for durability. The old VDO tachs are kind of finickey.

Mark