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I recently acquired a Lionel 6-28052 N&W Class A. After tossing it on the rails, I was very disappointed in it’s performance. This engine was a factor TMCC engine, but it did not have Odyssey, the smoke unit fan was constantly on, and it had a firebox glow vs. a flickering firebox. I ended up purchasing a Cruise M, Super Chuffer, Chuff Generator and flickering LEDs.

I decided that I would ditch all of the factory electronics once I opened the engine up. I ended up swapping the motherboard and bracket with one like you would find in a TMCC 611 Class J. I ended up swapping the two wire IR to a three wire IR as I was having signal issues. I installed a smart smoke unit along with an AC regulator (I know some will cringe at that) because I needed to be able to dial back the smoke when I do use smoke, and I fabricated a small flickering firebox board and used an old Lionel DC board to drive it with the appropriate resistor installed. I must say, this is a completely different engine and a great runner now!

I would like to give a big thanks to the forum members that helped me along with this project.

 

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Oh boy, I've got one just like yours, I've never run it, it just sits on the shelf and looks terrific.  I'm not a collector but I don't have any place to run it.  What you did looks really complicated.  I sure hope I don't have the same problems you were having, I may have to send it to you to have you doctor it up and fix it.   Glad you were able to get it changed over and it is working fine.  Thanks for the descriptions and the pics.  I hope it continues to work great for you.

J. Motts posted:

Oh boy, I've got one just like yours, I've never run it, it just sits on the shelf and looks terrific.  I'm not a collector but I don't have any place to run it.  What you did looks really complicated.  I sure hope I don't have the same problems you were having, I may have to send it to you to have you doctor it up and fix it.   Glad you were able to get it changed over and it is working fine.  Thanks for the descriptions and the pics.  I hope it continues to work great for you.

I may have went overboard with it as a Cruise M install would have made it run and function properly.  Me being me, I wanted more features/functionality and turned a simple upgrade into a project. 

SPFord27 posted:
J. Motts posted:

Oh boy, I've got one just like yours, I've never run it, it just sits on the shelf and looks terrific.  I'm not a collector but I don't have any place to run it.  What you did looks really complicated.  I sure hope I don't have the same problems you were having, I may have to send it to you to have you doctor it up and fix it.   Glad you were able to get it changed over and it is working fine.  Thanks for the descriptions and the pics.  I hope it continues to work great for you.

I may have went overboard with it as a Cruise M install would have made it run and function properly.  Me being me, I wanted more features/functionality and turned a simple upgrade into a project. 

This loco definitely needs cruise. I have one, and I have not run it for years. It ran OK by the standards of the time, but the lack of cruise, and the sound, really dated it. It did run a better than a friend's MTH PS1 version of the same engine, but not a lot (of course, the Lionel is a command loco, so that was a definitely better thing).

Having said all that, and knowing that SPFord27's loco must certainly be a great runner, if you ever get a place to run yours it may run to your satisfaction right out of the box. We all have different expectations. But this loco definitely needs some modernizations to live up to its looks.

Lionel will probably never re-release the N&W A, as it was one of the "lawsuit locos" and I am sure that the Korean tooling has long since left Lionel's control. It may have even been destroyed. New tooling would have to be made, and, in 2019, no way. 

Jayhawk500 posted:
SPFord27 posted:
Jayhawk500 posted:

Any chance of getting you to post up you Flickering fire box circuit diagram?

Thanks

 

I used eBay flickering LEDs and a 5v DC board from Lionel. I haven’t figured out the circuit to make my own DC board yet.

Thanks, I'll look into it. Got a P/N on the Lionel board?

Here is the part number. 691REG5A00

https://www.lionelsupport.com/media/partimages330/342222691REG5A00.jpg

I used a resistor inline with this to drop the voltage to ~2v. I will post a picture of the resistor when I get home. I am tempted to buy another and duplicate for personal use. For $12 I don't know that its worth the trouble. Best I can tell, it had a regulator, diode and capacitor. The one pictured has a different style regulator, the one I have has a regulator that looks like a triac. As far as the LEDs go, they are all wired in parallel (all hots together and all grounds together). For the LEDs themselves, search the auction site for item 321441410635.

Last edited by SPFord27
SPFord27 posted:
Jayhawk500 posted:
SPFord27 posted:
Jayhawk500 posted:

Any chance of getting you to post up you Flickering fire box circuit diagram?

Thanks

 

I used eBay flickering LEDs and a 5v DC board from Lionel. I haven’t figured out the circuit to make my own DC board yet.

Thanks, I'll look into it. Got a P/N on the Lionel board?

Here is the part number. 691REG5A00

https://www.lionelsupport.com/media/partimages330/342222691REG5A00.jpg

I used a resistor inline with this to drop the voltage to ~2v. I will post a picture of the resistor when I get home. I am tempted to buy another and duplicate for personal use. For $12 I don't know that its worth the trouble. Best I can tell, it had a regulator, diode and capacitor. The one pictured has a different style regulator, the one I have has a regulator that looks like a triac. As far as the LEDs go, they are all wired in parallel (all hots together and all grounds together). For the LEDs themselves, search the auction site for item 321441410635.

Thanks for the info.

Here's some flickering firebox modules I've done, both AC track powered and DC 5V powered (powered from Super-Chuffer). 

I use four 3mm flickering LED's, red, orange, and yellow.  I file the ends flat to diffuse the light, and put a plain white paper between the LED's and the firebox opening.  The LED's should be about 1/8" away from the firebox opening for the best visual effect.

Flickering Firebox ModulesLED Flickering Firebox AC Powered SchematicLED Flickering Firebox DC Powered Schematic

If you're looking for a simple power supply, I use this design for DC from track power.  Selecting the regulator gives me options from 3V through 15V.  I make these as I need them.  I fold the regulator flat on the underside to reduce the size.  The regulator can also be bolted to the chassis for more power handling capacity.

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  • LED Flickering Firebox DC Powered Schematic
Last edited by gunrunnerjohn

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