65 Barracuda Formula S Tachometer Wiring?

I'm sure I have a stock used one. It worked when I pulled it, but, it's been sitting on a shelf for many years, so, no guaranty it still works. I don't currently have anything running to test it. If you're going to do the electronic upgrade like what you posted, it probably wouldn't matter.
I know you are trying to help but if you have a part to sell or give a member, don't talk about it on the thread but send them a personal message behind the scenes. We don't want information threads to turn into sale and wanted threads which are not allowed here. Thanks