Is there a relatively simple formula, or even better, a chart, to help those of us that are math and electronically challenged to know what size resistor we need to use when using 12v or 1.5v bulbs or 1.5v LEDs, which are powered by the 14v track output?
Soundtraxx recommends starting with a 570 ohm resistor when using a 1.5 v bulb with their decoders, but what if I want to use a 12v bulb?
Thanks in advance for any help.
Jim
Soundtraxx recommends starting with a 570 ohm resistor when using a 1.5 v bulb with their decoders, but what if I want to use a 12v bulb?
Thanks in advance for any help.
Jim