The Stovebolt Site Forums The Shop Area The Electrical Bay How to identify a 12V system?

I made a 6V alternator a while ago by changing the diodes and voltage regulator. I was having reliability problems and it worked for a while until I decided to convert to 12V. Parts are available on line, you can convert a GM 10si alternator to 6V for about $25. It worked pretty good until a short fried the regulator. I changed the harness and used a 12V alternator.