Hello all
I put some digitrax DH1650AO decoders into some locos I bought. They run fine, but the lights don't. The digitrax instructions say that the board output for lights is 15mA, with an option for 30 mA which you get when you scratch out a circuit.
I chose 30, with the intent of putting in icandescents. Then I changed my mind and bought T1 LEDS. The max capacity of the LEDs is 20 mA. I assume that is why I can't get the lights to work. What resistor should I use to lower the mA's to less than 20?
I recall that the LED's are 3 V, 20 mA capacity
Digitrax support is not getting back to me.
BTW, after 3 years advice from Jim Banner, Rich, Old Timer, and many others, our layout is finally finished! Couldn't have done it without you guys. With no LHS, this site has been the source of most of my knowledge and present ability. Thank you all.
Chris Keusink
I put some digitrax DH1650AO decoders into some locos I bought. They run fine, but the lights don't. The digitrax instructions say that the board output for lights is 15mA, with an option for 30 mA which you get when you scratch out a circuit.
I chose 30, with the intent of putting in icandescents. Then I changed my mind and bought T1 LEDS. The max capacity of the LEDs is 20 mA. I assume that is why I can't get the lights to work. What resistor should I use to lower the mA's to less than 20?
I recall that the LED's are 3 V, 20 mA capacity
Digitrax support is not getting back to me.
BTW, after 3 years advice from Jim Banner, Rich, Old Timer, and many others, our layout is finally finished! Couldn't have done it without you guys. With no LHS, this site has been the source of most of my knowledge and present ability. Thank you all.
Chris Keusink