I have been working on rebuilding my layout into a modular, or sectional, style. I have one section of track set up with the AR-1 reverser. I have noticed that when trains are entering the reversed section, and the current had previously been in the opposite polarity, I will see a small spark where the loco wheels hit the track.
A.) Should I worry about this?
B.) Any way to reduce this from happening?
Perfectly willing to admit to a tiny bit of simple paranoia here. Model trains and tiny sparks go together like PB&J. This is just something I happened to notice and now my brain is fixating on it, you know?

Hi,

I'm converting an LGB Mikado and have questions about the chuff wiring.

It appears that there are a black and brown wire coming off the motor block that is likely to be the chuff circuit.  A friend of mine converted a Mikado some years ago and insists that the chuff signal only requires one wire.

The chuff signal is generated by 4 little magnets on the rear-most drive wheel rotating past a magnet mounted on the motor block.

Is the chuff circuit two wires or one wire?  Does it have polarity?  My guess is two wires, no polarity.

I'm with Bill as well and I just like the fuller sound of multiple locos.

I'm running Fn3. I have a 2 loco GE 45 Ton set up with a speaker in the front hood, a big speaker between in a box car and another in the trailing loco rear hood. It sounds awesome.

If money is the issue, get the sound module, but hold off on the speaker until you can afford it.

Thank you Al for your reply. Was away several days and not able to respond.

Lots of people think this is a good idea, but personally I would not. If you ever want to change or split up the pairs, you lose a lot of flexibility and 2 locomotives always sound like 2 locomotives in real life, and that is true of the models as well.  I would go with all sound equipped.