by RichD » Sat Jun 06, 2015 6:25 am
On a three lane track running at 10 volts without magnets cars with Slot.it 18.5K motors would pull 6 amps from time to time, but mostly they used an amp or so. If it was me and I had a four lane track I would spring for the 10 amp power supply. It looks like there is a trimmer adjustment on the front panel that can be used to correct the voltage reading if you are really fussy.