04-06-2010, 11:08 PM
that's somewhat right indeed. They do have a load, be it a very small one, up to 1.5V for a standard led, no resistor is required, but in our situation, with higher voltages on tracks and leds build in as headlights etc, we do need one. The site has resistor info too.
Be sure to visit my model railroad blog at <!-- m --><a class="postlink" href="http://www.namrr.blogspot.com">http://www.namrr.blogspot.com</a><!-- m -->