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Dual Filament Bulb Question

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  • Member since
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  • From: Collinwood, Ohio, USA
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Posted by gmpullman on Sunday, February 28, 2016 4:34 PM

Glad that tip worked out for you, Al! As I said, a few of my early decoder installs in Life-Like engines wound up being reversed since I assumed the red wire was plus.

Now I keep a nice DC power supply at the bench and test every motor and make sure the direction is correct.

Thanks for the update Yes Ed

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Posted by albjr on Sunday, February 28, 2016 4:29 PM

Ed,
   Sure enough... the leads to the motor were reversed from what is normally found and you made it easy for me to wire the decoder correctly from the beginning and not have to reverse the direction in DecoderPro
Thanks
Al

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Posted by hobo9941 on Friday, February 26, 2016 10:42 PM

I installed DCC and sound in several Lifelike E8/9s. There was enough room in the loco that I left the original light board in place. I then fed the headlight output from the decoder to the old lightboard track inputs. That preserved the two filament mars light feature.

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Posted by gmpullman on Friday, February 26, 2016 12:03 PM

One more hint, ALB

Some of the Life-Like engines I've put decoders in ran backwards when I was finished. Some of the engines had a red motor wire as the — and a black wire as + !

This is usually no problem since it is easy to set the NDOT or normal direction of travel easily with CVs.

So, I suggest you test the wire orientation with a 6-9 volt DC source, it can even be a 9 volt battery or a DC wall transformer (usually the white-coded wire is + but check it with a volt meter).

If you touch the + to + and - to - on the motor the engine should move forward, then you know how to orient the gray and orange wires from the decoder to the motor.

Good Luck on your project, Ed

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  • From: Bakersfield, CA 93308
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Posted by RR_Mel on Friday, February 26, 2016 11:55 AM

mlehman

Neat idea on the hacked LED, Mel. I'll have to file that away for future reference.

 

 

Mike
 
I experimented using a couple of top hat 1.8mm LEDs and they’re easier to aim through the 5mm lens.  I haven installed one using the top hats so I can’t say how they look in a shell.  Using them with a MRC 1730 decoder they look better programmed for Gyralight than using MARS.
 
 
 
 
Mel
 
Modeling the early to mid 1950s SP in HO scale since 1951
 
My Model Railroad   
 
Bakersfield, California
 
I'm beginning to realize that aging is not for wimps.
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Posted by mlehman on Friday, February 26, 2016 11:26 AM

Neat idea on the hacked LED, Mel. I'll have to file that away for future reference.

Mike Lehman

Urbana, IL

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Posted by albjr on Friday, February 26, 2016 10:55 AM
Thanks for the reply Mel... I will try the decoder Mars light first...
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Posted by albjr on Friday, February 26, 2016 10:54 AM
Thanks Ed. Out goe the bulbs.
  • Member since
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  • From: Bakersfield, CA 93308
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Posted by RR_Mel on Friday, February 26, 2016 9:10 AM

I agree with Ed
 
The Proto E series with the dual filament bulb should have a smaller headlight below the larger dual filament bulb.  The dual filament bulb is a MARS or Gyralight.  Most decoders have a driver for the dual filament bulb, the Proto dual filament bulb is a 3 volt bulb so make sure the voltage to the bulb is correct.
 
I make my own MARS lights from LEDs by filing one side flat on each LED and using CA or super glue to attach them together.
 
 
I keep a large stock of LED in all sizes and colors.  For my MARS light I cut the actual LED portion off of a 5mm clear LED keeping the 5mm lens (lower left) for the front of the MARS light.  I use 3mm clear or warm white LEDs for illumination.  I file one side flat on each 3mm LED and glue them together then file the end flat and glue that to the 5mm lens.
 
As Ed stated the LEDs are instant on and off so as a fill I’ve also used a third 3mm (lower tight) between the two flashing LEDs wired to the solid on of the headlight.
 
They look pretty good to me and I’m a happy camper watching them in action.
 
 
Mel
 
Modeling the early to mid 1950s SP in HO scale since 1951
 
My Model Railroad   
 
Bakersfield, California
 
I'm beginning to realize that aging is not for wimps.

 

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Posted by gmpullman on Friday, February 26, 2016 8:35 AM

In my experience it has always been best practice to remove the incandescent bulbs and go with LEDs. A few early installs I did in Life-Like locos where I left the bulb in place, including several E units, the heat had distorted the plastic and on some even melted the body shell!

Even if you left the dual filiment bulb there you would only use one filament of it since nearly all decoders today have lighting effects that are accessablt through CV selections at programming.

Many, like the Econami, are improved to make LEDs look more like incandescents by ramping up and back down slower, rather than the quick on-off flash of a typical LED.

In the E units where I mounted the Mars or Gyralight, I found it was pretty easy to snap off the top of the lucite "light pipe" and make an LED holder out of tubing.

I put black shrink tubing so the Mars light doesn't spill into the opening for the regular headlight (door). In some installations, I've placed a third, dimmed LED in the nose to keep the number boards lit when both headlights are off.

As I recall, I removed all the original Life-Like boards and hard-wired the decoders directly to the truck pick-up wires and motor wires. You don't need all the lighting diodes and flasher circuitry for the ersatz L-L Mars light simulator anyway, plus you can use the extra space for the speaker mounting.

This all takes a little extra time but it is worth it, I believe.

Good Luck, Ed

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Dual Filament Bulb Question
Posted by albjr on Friday, February 26, 2016 8:07 AM
I have a Proto 2000 E8/E9 locomotive. I would like to install an Econami 200 decoder.  My question is: The loco has a twin filament headlight. Can I use this with the Economi and if ‘yes’ what is the hookup and if ‘no’ should I replace the bulb with a single filament bulb or an LED. Thanks in advance

 

ALB

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