by RichD » Sun May 21, 2017 5:42 am
You did not say what sort of cars you expected to run. Slot cars will use a lot more current than you would expect when they first start up. A high performance HO car can draw 10 amps for example. Wire is cheap and for a drag strip you will not need very much of it. It does not hurt to use heavier wire than you really need. You could use heavy duty 14 gauge zip cord from a hardware store.