N scale "What's on your workbench?"

Mark Watson Oct 28, 2009

  1. Chris Hall

    Chris Hall TrainBoard Member

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    it was a three steps forward, six steps back weekend for the layout.

    On my bench I now have five very sorry looking turnout motors. Used 12v dc instead of the 16v ac power supply and had pretty much instant smoke. IMG_4481.jpg
     
  2. mtntrainman

    mtntrainman TrainBoard Supporter

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  3. dualgauge

    dualgauge TrainBoard Member

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    Oh No you let the magical smoke out. The smoke is what makes them work.
     
  4. Carl Sowell

    Carl Sowell TrainBoard Supporter

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    Here is my latest workbench project. It is a multiple voltage power unit.
    I started with this.
    [​IMG]

    [​IMG]

    [​IMG]

    These are all the peripherals, that I snipped off inside the case. It is hard to believe that all of these were connected to the motherboard and passed through the rear of case with the 24pin pig tail that you see.
    [​IMG]

    This or something similar is what I am shooting for. It will have terminals for 3.3v, 5v, and 12v. I have found a kit that has an adjustable range from 1.?v to 10.? volts. Not sure which way I will go..
    [​IMG]

    This power supply came out of my oooold Dell desktop.

    Be well
     
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  5. logging loco

    logging loco TrainBoard Member

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    I'll be following this for sure
     
  6. MK

    MK TrainBoard Member

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  7. Carl Sowell

    Carl Sowell TrainBoard Supporter

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    MK,

    thanks, it is not too late and I had looked at both of those. For time and to save chasing parts I may go with the 1st one or another one I saw that has adjustable terminal.
     
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  8. mtntrainman

    mtntrainman TrainBoard Supporter

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  9. Chris Hall

    Chris Hall TrainBoard Member

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    You might have to use a resistor between the 5v and ground, I've built two of these, one on my layout and the other under my workbench. The layout didn't like the resistor and shut down however the benchtop power supply needed one.

    Looking at the min amp specs on the side of yours, I would hazard a guess that you will need one. Just be careful where you mount it, they get damn hot.
     
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  10. Pastor John

    Pastor John TrainBoard Member

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    If I'm reading that right, you mean that the resistor gets hot. If that is the case, be sure to look at the voltage/amperage specifications for your resistors. It might be better to oversize it and buy a higher wattage resistor that is designed to dissipate heat. I've played with 120 volt one Ohm resistors. For one Ohm, they're still as large as your index finger and can be even bigger if they have fins to help shed heat. Obviously, something like this wouldn't need *that*, but you get the idea.
     
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  11. Tim Holmes

    Tim Holmes TrainBoard Member

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    Does anyone know the voltage spec range for the atlas twin solenoid switch machines? I have an old power supply that I used when I was a ham operator, I have to dig it out to check the voltage ratings but 13.8 wouldnt suprise me at all --- I would like to get them running temporarilly till I can get my servo controllers and mounts built

    TIM
     
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  12. Carl Sowell

    Carl Sowell TrainBoard Supporter

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    Pastor John,

    Yes, I plan on a resistor. the build that I am following used an 8 ohm 50 watt finned piece. He said "you can use smaller", but if this is good for him it is good for me.

    Be well,
    Carl
     
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  13. sd90ns

    sd90ns TrainBoard Member

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    A couple of photos for the gentleman modeling the military equipment.
    [​IMG]

    [​IMG]
     
  14. MK

    MK TrainBoard Member

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    Did they try to kill you after taking those pictures? :D:ROFLMAO::LOL:
     
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  15. Kurt Moose

    Kurt Moose TrainBoard Member

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    Shhhh, he's in hiding! :cautious:
     
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  16. BNSF FAN

    BNSF FAN TrainBoard Supporter

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    Next item up for build is this. Went on the workbench yesterday.
    20210228_115312a.jpg
     
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  17. BoxcabE50

    BoxcabE50 Staff Member TrainBoard Supporter

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    I spy an early morning crash and bang wake-up device. :ROFLMAO::ROFLMAO::ROFLMAO:
     
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