hi! dont know if this is the right forum but here goes. at the moment i,m running a 15v 5amp regulated switching mode power supply. ive got hold of an old 0 to 50v 40 amp variable voltage power supply. can i run my cars on it or do i have to clean up the voltage to my track, if so how would i do it. as you might have guessed im a right thickie when its about electricalt things, i still think its magic so keep it simple for me, allmost forgot its input is 240volts. thanks i hope. john.