Identify Old Boards

I'm cleaning up, and I have 2 boards that i need help to identify.

The first is a QSI board, that if I recall, came from an MTH RDC car. I don't know if it was PS1, or whatever. QSI ©1999 printed on bottom board, and SD105 97,12,15 on the top board which has the speaker output.

Second, I have no recollection what this came out of...

MDK-032 printed on the reverse.

Any clues?

Thanks

-Jim

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4/5/177:01 PM

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Marty FitzhenryOGR Forum Member MEMORIALIZED MEMBER

The top is a DCRU with a horn board mounted on top.

4/5/177:40 PM

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Chuck SartorOGR Forum Member

MDK-032 is a reverse board for a K-line locomotive.

4/5/179:50 PM

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