gunrunnerjohn posted:stan2004 posted:That said, has someone proposed tacking on a 2-cent resistor around ~2000 Ohms to any pair of copper islands at the boundaries of each section of 3-LEDs?
Stan, you only need one resistor, right across the feed to the LED strip, I've tried this. Values from 2.2K and down will vary the brightness of the LED's significantly without modifying the board.
John and Stan,
Your recent posts were interesting so I decided to do some experiments. I found that a 3k resistor will just slightly dim the LEDS. I also found that really low values, 270 Ohms for example, turns the LEDS off completely and immediately. Anyone wanting to do this should start with John's 2.2K value and work their way down to get the desired brightness.
I also verified that the LEDS brightness does vary depending upon the number of LEDS attached. More LEDS, less brightness. That wasn't as noticeable when you just hook up different numbers of LEDS depending upon car requirements. In some cars I used 15 LEDS and in a couple of baggage cars only six LEDS.
