Actually more like, how do I use it and am I missing a bunch of parts?
I found this at a Goodwill store the other day for a dollar and decided the price was right to save it from the dumpster. I figured out that it is a Prince On Board Computer sold in the late 70s. It functions sort of like the on board computer systems that are standard in modern cars.
So what I am trying to figure out is what would I need to make it work. I found another one on eBay that appeared to have many more parts to it. Also what is this socket at the end, a power cord or ECU socket?
I know this is most likely a paperweight, but I think it is a neat little piece. Could go into my man cave or I could put it on eBay and see if anyone wants to use it in their Lincoln Mark IV.