So I went to Columbus for an autocross. Took 2nd, I think, in my class. . . out of 2. On the way back, I stopped for a burger in BFE. Came out to the car, did not start. Checked all the fuses, checked all the relays, everything seemed to be fine. Panic sets in. I am on the side of the road for 2 hours trying to diagnose the issue.
Some very nice gentlemen in a MG midget stopped to help. They opined that the voltage regulator or the alternator went. The 911 not having electrics by Lucas - the prince of darkness - I dismiss their suggestion.
Another nice couple in a SUV stopped. They had a 356 and a 911 restored by a shop in Columbus. I make arrangements to drop the car off there.
I dither around for a while about that, as how I get home from Columbus raises it's head.
In the end, I tow the car back to Cleveland - 100 miles.
Now that I have a voltmeter, I can test the alternator, the voltage regulator and the battery. Nothing is wrong with any of these.
Turns out I forgot to tighten the positive terminal on the battery. Problem solved. Egg all over my face.
0) DON"T PANIC
1) Run in a pack of cars on the way home
2) Take your tools with you
3) It might just be something stupid
4) Listen to the nice guys in the MG, they may know a thing or two