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EMD "black box" regulators
https://rypn.org/forums/viewtopic.php?f=2&t=33914
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Author:  robertmacdowell [ Sun Sep 23, 2012 7:07 pm ]
Post subject:  EMD "black box" regulators

I am trying to repair an EMD "black box" type voltage regulator.* There are several burnt components on the circuit board.
We don't have any EMD locomotives, so I lack any books on this unit. It would help tremendously if I could get a schematic; or a parts list which indicates the spec of the components in each position. Would anyone have such a thing?
Thanks.

* this one is part number 8330790-3, but we also have one of the 8351980 types.

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