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15 volts doesn't seem like it would be enough for these modern diesels? My power supply is switchable and at 16v my LGB Mikado seems like it crawls. I use a Crest 23.8 volt 10amp power supply with my NCE Pro 10amp and have had no issues. With this I can get the 1:29 engine up to 50 scale mph. I normally run it at about 30 - 40 smph.

Tom, I think Greg can get his engines running close to the scale mph that you are looking for so I'd check out his site. Also, do you know about the pot in the NCE and how it comes standard set at 16v but can be turned up to get close to 22v to the track?
 

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Ah, okay, sorry I saw the 15 volts and misunderstood. That model sounds nice. if I ever need a replacement or another I'll keep that in mind, thanks!

Mark, are you wanting to run just straight DC or DCC?
 

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Mark, you might get a better response if you post a new thread as some might not look here to help you with a controller. When I ran straight DC i used a pretty cheap Crest Controller like this one:

Controller

It takes a DC power supply as input. It says 16v but mine has no problem with a 23v DC supply.
 
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