I'm working on a MTH RK streamlined passenger car and need to extend the wires from the trucks to the interior connection points. I was going to use some telephone wire that I have but the wire on the trucks is much more flexible and the insulation seems more pliable. What type of wire should I be looking for and where would I find it?
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You should be using Superflex wire, and probably #24 or larger is appropriate. 99 cents for two meters, eBay: 112138321930
Thanks John just ordered. Another project waiting for parts.
Glad you found what you need. For other guys who might want to know, it's officially (generically) called "test lead wire."
Arthur P. Bloom posted:it's officially (generically) called "test lead wire."
Well... not really. Actual test lead wire has a high voltage rubber insulation. Superflex is a very common nomenclature for fine stranded wire, but not necessarily with the thick high voltage insulation.
If you search for test lead wire, you'll get much more expensive stuff, and thicker to boot.
How did I know I was gonna get an argument?
Probably the same way I knew you'd have to comment when I corrected you. 
Thanks for the idea on the wire, it claims to be rated at 600 volts. I went big for the 5 meters (for an extra 25 cents). Looks like a deal!
I think 600V insulation is sufficient for 18-20 volts. 
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