Just purchased a book off eBay dated 1918 covering electrical systems of cars of this era printed by the American Bureau of Engineering. It explains the systems and tells what to do after each step of troubleshooting.
The problem is troubleshooting is supposed to be done with an AMBU tester that has dial readings that are scaled to this book.
Has anyone ever seen one of these meters?
Yes, I just purchased one on ebay a few months ago. I had the book as well and that's why I pursued the meter. I have not and probably will not use it, but it's a neat piece of early electrical test equipment.
I will post a photo later today.
The Coil Doctor
Thanks Brent, can't wait to see your pictures. Does your meter work? Wouldn't want to start a meter rental service would you?
Here are the photos of the AMBU tester.
I believe it works, but I haven't tried it.
Too much other stuff to do.
Just not enough time to play with my toys.
You are welcome to use it if you want.
Just let me know.