I jus got it installed, with the caps that came with it, and the railsounds F3/F7 board. It runs the engine perfectly, and the sound is great, but the motor rattles a lot at low speed. At high speed around the layout, it's fine, but most railroads don't switch at 80 mph. There appears to be some grease left on the gears, and I'm going to add some, but is the rattling related to the capacitor size?
Also, I want to add warm white LED's to the engine, but the AC commander seems to be designed for bulbs. What size resistor should I put in series with the LED?
Royz does sell LED circuits ready made, but there isn't much room left inside the shell.
Thanks.