Rheostats and Transformers
 

Radio Shack's rheostat craps out over 12v, so after smoking up the joint a coupla times, I just switched to a train transformer after reading this article:

http://cs.trains.com/trccs/forums/p/...8.aspx#1328018

and this one:

http://books.google.com/books?id=nnN...esult#PPA22,M1

which led me to getting one of these on page 2 - the 1300:

http://www.hobbylinc.com/prods/una_2.htm

Good Luck! thmbsp$

Interesting
 

I did have problem with the rheostat when I use four motors. With two motors they run fine. Personnally, I have been running my board for six months now and it is working great. It is true that the train speed control is an interesting avenue. There is also that avenue.

http://www.electronickits.com/kit/co...tor/ck1400.htm