I have an MTH SP GS-2 Northern with a 5 volt PS2 system (20-3060-1), that has intermittent sound, especially when going around curves. I have re-heated the solder joints on the engine's internal tether connector, but the problem persists. Now I suspect it might be the tether.
I also have an MTH UP Northern PS 2, also 5 volt system (20-3044-1). Would it be safe to connect the tender of this engine to the SP GS-2 to see if its’ Tender & Tether work without the intermittent sound problem. If it works properly, what MTH tether part number should I order for the GS4?
Thank you,
Ron