But before I get to that, there are a few more little electrical mysteries. Please see the photo of the back of the instrument cluster, the items with the pink circles. I have no loose wires. Is something supposed be plugged in?
I was thinking of using wedge base LED lights in the sockets identified by bits of blue tape; anyone have any comments about this?
And then in the photo from the steering wheel side, there is a two-wired bulb in a simple plastic push-in mount. This is not a push-in and twist device. The bulb turns on whenever the headlights are turned on. Beats me what this bulb is supposed to illuminate.
Now the FOUND IT:
Awhile back I asked about where to find the sockets (several were disintegrated). Auto parts places, even Datsun parts places didn’t know where to get the sockets. Well, the sockets are not rare, they are a part common on older US cars. Here is the eBay site I bought from: retromotive (29661) on eBay.
I only bought five because I didn’t know if they would fit. They fit perfectly. I am going to replace the remaining five old ones. Just a little word of caution, some of the ones I received had a teeny bit of residual plastic flash from molding. If you don’t trim this, it can make it very hard to remove the socket if you ever need to remove the socket because the untrimmed plastic tends to wedge the socket too firmly in the circuit board.
I have included photos and a drawing I did of the socket shape with the relevant dimensions.