I took my chances by purchasing a “new old stock” Protosound 1 EMD GP38-2 diesel - Bangor & Aroostock 20-2227-1. I was told that it was never run - It does look new. I replaced the corroded battery with a BCR before starting it.
It made 2 clanks and makes the idling sound when the power is turned on and the lights work.
It wouldn’t charge the BCR so I tried a regular 9v battery and then it began to smoke.
THANKS FOR YOUR HELP EVERYONE!
After checking the continuity and determining that it was fine, I reversed the polarity of the battery and the BCR charged and the engine works perfectly.
The power and members of this forum are awesome.
Thanks again
Chris