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Diagnosis:

Less than 13+ volts across battery terminals with engine runninig.

Disconnect the negative battery post with engine running and the engine quit.

Fix:

Took the alternator off and took it to an auto electric shop.

They tested the alternator, replaced the regulator and retested.

Total charge $39.47 Canadian.

The person that did the work told me that the alternator was original and in great shape.

I installed the alternator. Everything is working perfectly under all the load I can give it.

Thanks for the help people !