Can someone help with a suggestion on capacitor size one would use to help stop the flickering on Kato #11-204 DC lighting. Is there a capacitor small enough to fit in the car with the light kit? I also Have 3mm led's and would like to build my own. Question is what size resistors to us with DC as the voltage will never reach 12-15V? Looks like LED's are prefered with DCC, and most wiring diagrams are for 15v.
Take a look here: Lighting_accessories Scroll down to "Miniature 16-volt & 25-volt Capacitors". I use 2-4 of them for the marker lights of my cabooses. As for the resistors: Start with a 380Ohm resistor and work from there. (i.e. if the LED is to bright, increase it. Don't go beyond 380Ohms. hope, this helps Michael
