Need Help Identifying GM Alternator

I have what is believed to be a 3 wire GM alternator with the internal regulator. I bought it at a swap so now I need to confirm. It has the typical one large lead on the back of the alternator for the power and then a Field 1 and 2 next to each other on the perimeter of the housing. I tried to take some numbers off of it, so here's my best shot at it. The numbers are in two rows, the top row is 1 102913 61 ? and the bottom row is SK 1--12v NED.

I'd like to confirm that its a 3 wire and the amount of amps it will generate.

Thank you for your assistance.

 

Google "GM alternator identification" .

 

are the terminal pins in a straight line, or parallel to each other?

straight: -- --

parallel: | |

if it's straight it's internal, if they're paralle it's external regulator

 

Or do a search on the HAMB.

http://www.jalopyjournal.com/forum/showthread.php?t=439054&highlight=alternator

 

This guy put some serious time into putting this article together an it is simple to follow. http://www.expeditionlandrover.info/Delco_Alternators.html
Be aware that he is converting a Land Rover to a Delco alternator but it is a great source of Delco alternator info as far as the alternators we would most likely be interested in running.

 

Thanks everyone. That was very helpful. Looks like I have a 3 wire with internal regulator.