Trains.com

Subscriber & Member Login

Login, or register today to interact in our online community, comment on articles, receive our newsletter, manage your account online and more!

HO Headlight Question

2043 views
13 replies
1 rating 2 rating 3 rating 4 rating 5 rating
  • Member since
    December 2005
  • From: MP 175.1 CN Neenah Sub
  • 4,917 posts
HO Headlight Question
Posted by CNW 6000 on Wednesday, August 27, 2008 1:07 AM

So here's where I'm at: I have a couple of Digitrax DH123D decoders that I plan to install in two HO scale Athearn BB AC4400s.  I want to install one LED for each light (front/rear) in each loco.  What is the most plain English way of doing this?  All I need to know is what to buy and where to attach it.  Simple diagrams are great! 

FWIW I tried searching but either used the wrong terms or couldn't find what I thought I was looking for.

Dan

  • Member since
    July 2006
  • From: Austin, Texas
  • 875 posts
Posted by jasperofzeal on Wednesday, August 27, 2008 1:25 AM

A while back someone asked the same question and somebody gave this as one of answers: http://www.tonystrains.com/technews/install-leds-decoders.htm.  Pretty helpful info there.

TONY

"If we never take the time, how can we ever have the time." - Merovingian (Matrix Reloaded)

  • Member since
    December 2005
  • From: MP 175.1 CN Neenah Sub
  • 4,917 posts
Posted by CNW 6000 on Wednesday, August 27, 2008 10:13 AM
 davidmbedard wrote:

1.  The wires you need to use are the Blue/White and Yellow ones.

2.  Install a resistor (typically 570ohms) on the white and yellow leads.

3.  Connect a wire from the LONG leads of the LEDs to the blue wire.

4.  Connect a wire from the short lead of the front led to the white wire.

5.  Connect a wire from the short lead of the rear led to the yellow wire.

David B 

What I was looking for...thanks.

Dan

  • Member since
    December 2005
  • From: MP 175.1 CN Neenah Sub
  • 4,917 posts
Posted by CNW 6000 on Wednesday, August 27, 2008 1:40 PM
What would be a good LED to use?  My local retailer didn't know which would be best...any ideas?

Dan

  • Member since
    December 2003
  • From: Anaheim, CA Bayfield, CO
  • 1,829 posts
Posted by Southwest Chief on Wednesday, August 27, 2008 2:06 PM

The best LED?

Well not sure of the size since I don't have any AC44's but you'll probably want to get "sunny" white LEDS.  If you can, avoid white LEDs for headlights.  White LEDS have too much blue tint and rarely look like real headlights.  Some tint/paint their LEDs to get rid of the blue color.  I can see why some people tint since "sunny" or "golden" white LEDs cost a lot compared to plain old white.

You might remeber some very early LED equipped HO locomotives having a very stark blue tint.  Some years latter, to combat the too much blue tint, manufactures used yellow LEDs.  It's only been the last few years where incandecent like LEDs have hit the market.  I assume as the years progress we'll be seeing HO locomotives with sunny or golden LEDs already installed.

Matt from Anaheim, CA and Bayfield, CO
Click Here for my model train photo website

Moderator
  • Member since
    June 2003
  • From: Northeast OH
  • 17,249 posts
Posted by tstage on Wednesday, August 27, 2008 3:17 PM

Dan,

  • Size: 3mm
  • Color: I like the golden-white LEDs for steamers and early diesels.  However, I don't know prototypical how those look on newer locomotives, like an AC4400.

Tom

https://tstage9.wixsite.com/nyc-modeling

Time...It marches on...without ever turning around to see if anyone is even keeping in step.

  • Member since
    December 2005
  • From: MP 175.1 CN Neenah Sub
  • 4,917 posts
Posted by CNW 6000 on Wednesday, August 27, 2008 8:07 PM
 tstage wrote:

Dan,

  • Size: 3mm
  • Color: I like the golden-white LEDs for steamers and early diesels.  However, I don't know prototypical those look on newer locomotives, like an AC4400.

Tom

So something like this?
eBay Item

Dan

  • Member since
    December 2005
  • From: MP 175.1 CN Neenah Sub
  • 4,917 posts
Posted by CNW 6000 on Wednesday, August 27, 2008 8:20 PM

Or will this work with too?

TCS LED Kit

Dan

  • Member since
    June 2005
  • From: Hot'lanta, Gawga
  • 1,279 posts
Posted by Rotorranch on Wednesday, August 27, 2008 10:52 PM

They ePay link didn't work, but the TCS link did. That looks like a good all-in-one kit.

Rotor

 Jake: How often does the train go by? Elwood: So often you won't even notice ...

  • Member since
    December 2003
  • From: Anaheim, CA Bayfield, CO
  • 1,829 posts
Posted by Southwest Chief on Wednesday, August 27, 2008 10:54 PM

For some reason the eBay link would not open for me.  But the TCS is a nice kit.

Take a look at the link below.  It shows the color differences between "Golden" and "Sunny".  With modern AC4400s I'd personally go with Sunny.  They look more like modern headlights.  Golden are great for F units, Steam locos, or really any thing of the "Golden" era of railroading.  Sorry for that bad pun Laugh [(-D]

TCS LEDs

Matt from Anaheim, CA and Bayfield, CO
Click Here for my model train photo website

  • Member since
    June 2005
  • From: Hot'lanta, Gawga
  • 1,279 posts
Posted by Rotorranch on Wednesday, August 27, 2008 11:57 PM
 Southwest Chief wrote:

For some reason the eBay link would not open for me.  But the TCS is a nice kit.

Take a look at the link below.  It shows the color differences between "Golden" and "Sunny".  With modern AC4400s I'd personally go with Sunny.  They look more like modern headlights.  Golden are great for F units, Steam locos, or really any thing of the "Golden" era of railroading.  Sorry for that bad pun Laugh [(-D]

TCS LEDs

That looks even "mo better"!

Bad pun noted, and laughed at! Big Smile [:D]

Rotor

 Jake: How often does the train go by? Elwood: So often you won't even notice ...

  • Member since
    December 2005
  • From: MP 175.1 CN Neenah Sub
  • 4,917 posts
Posted by CNW 6000 on Thursday, August 28, 2008 12:49 AM
I do like that "sunny LED" color better.  I'll be ordering from them (TCS) hopefully soon.  Thanks for the awesome suggestion!  I will be sure to let you all know how it goes.

Dan

Subscriber & Member Login

Login, or register today to interact in our online community, comment on articles, receive our newsletter, manage your account online and more!

Users Online

There are no community member online

Search the Community

ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT
Model Railroader Newsletter See all
Sign up for our FREE e-newsletter and get model railroad news in your inbox!