Hi all,
I picked up a set the new MTH R-40 Proto 3 subway set. It came with a plug wired with an in-line resistor. There is no mention of it in the instruction manual, or did I miss something? Does anyone know what it is for? I run using DCS. Thank in advance for any and all information.
Best regards for a Happy, Healthy and Safe 2023!
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Yes, you plug that into the unused electrocoupler port- to prevent blowing the FET!!!!
Possible, did someone add an electrocoupler in place of a fixed non-operating coupler? That would explain why they removed that resistor and plug.
Example topic of when that resistor is required https://ogrforum.com/...er-resistor-question
Hi Vernon, Getting a little confused here. The plug was in the package sealed in a bag. I took it out to photograph it. The set is brand new. If I understand this correctly is the plug/resistor used when an Autocoupler is replaced by a fixed non-operating coupler?? That would make sense. I think.
Yes, the plug is intended for use if you replace the rear Proto-Coupler with one of the short fixed non-operating couplers.
Switching to the shorter couplers will bring the cars closer together for a more prototypical appearance. I think they look better that way but a potential drawback is that it increases the minimum curve required. My El has loops with GG O-42 and O-54 curves: the R40s will negotiate O-42 curves with the factory couplers but the pantograph gates will touch with the short couplers. The short couplers are fine on my O-54 or larger loops.
I'm glad you got an answer because I was wondering the same thing about my sets.
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