Many pickup from one side of the truck for one rail and the other side of the second truck, the other rail.
Some like Roundhouse steamers pickup one rail, one one side of both trucks. The other side of both trucks, the other rail.
Get out your multimeter and use the ohms section of the meter and do some continuity checks and figure out how your loco and tender pickup from the rails. Since you are willing to do this kind of project, I assume you have a multimeter.
The right side of the loco pickup from the right rail and the left side of the loco, the left rail.
Match this to whatever tender you can get.
Rich
If you ever fall over in public, pick yourself up and say “sorry it’s been a while since I inhabited a body.” And just walk away.
I want to change my tender on my new Paragon 2 Heavy Mikado. I run straight DC, has anyone done this. I could probably just pull out the electronics and put them into a different tender. I' m not sure how to do the pick up wheels, has anyone done this. I called BLI and they were not very helpful. He said it might work, but they would not sell me just the tender I wanted. Thanks.