I have received the tower lights for both of the yards on my layout. They came with separate resistors that need to be soldered to each light. Does it matter which of the two wires  (assuming one is a positive lead and one a negative) the resistor is soldered to? Once done, I plan on sliding shrink tubing over the resistor to prevent damage.  

Does anyone have experience painting balsa wood on your buildings?  Being as soft as it is, I have a feeling the wood will soak up paint like a sponge.  I mostly curious if the wood should be sealed with something prior to painting.  I'll be using these 1/16"-thick clapboard siding panels. My plan is to cut the panels to size, cut the window and door openings, affix the window and door casings to the panel, and paint the panels on both sides.

Thanks!

Kevin

So I've added a Lok sound 5 to an Atlas H-16-44.  This loco originally came with it's own DC/DCC decoder and was supplied with directional LED marker lights (4) that were RED/Green.   Each of them has 3 wires:  Black Red and White

On the loksound decoder,  the only way I am able to get them to light is by:

Black to Aux 1, Red or White to Common to give Red or Green respectively  

I would like to enclose my R.I.P. track in cement so that lifttrucks can move material and jacks can be used when replacing wheels.  I am toying with using plaster of paris or styrene but would like to hear how others have done theirs.

Thanks for any input.

Ken