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About 5 years ago I did two different Greenmax JR103 setsw power units. These have the coreless motors. I also have and did one older JR103 set from Greenmax but that is not the subject of this entry. Someone posted on Reddit about the MT40 stuff and someone asked if they had any Greenmax compatible units and I said I didn't see any but I had done some wired conversions and could post the pics. I am posting here as my base of operations and for posterity. These pics come from both my conversions, which were done the same, and uses a D&H PD05A decoder. You could really use any micro sized decoder like a Lokpilot 5 micro or a Zimo micro as well. I may come back and provide more text to this but for now, due to time and being late with some day-job work, I'm just posting the pics of the steps I did.