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Dual pickup/contact locomotives

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  • Member since
    March 2008
  • 18 posts
Dual pickup/contact locomotives
Posted by Boatman44 on Sunday, February 13, 2011 12:06 PM

I'm just building a new HO layout and I am going with DCC. I have lots of old DC stuff but it has all seen better days, and it's "time" for some new technology :)

Does DCC handle dual pickup/contact wheel sets on locomotives well? Does it address the two sets of contacts as one set? How does it handle a reversing loop?

I want the dual pickups so that I can better operate at very low speeds trhough turnouts, with no stuttering or hesitation at the frogs. I know, they shouldn't stutter or hesitate if everything is perfect, but perfection is not in my physcial ability tool box.

All comments will be welcomed :)

  • Member since
    May 2008
  • 4,612 posts
Posted by Hamltnblue on Sunday, February 13, 2011 4:06 PM

Actually it is recommended that you have all wheel pick-up on the loco's to avoid glitches in voltage. The pickup wires from both trucks tie together at the decoder.

Springfield PA

  • Member since
    March 2008
  • 18 posts
Posted by Boatman44 on Monday, February 14, 2011 10:59 AM

Ok thanks, that really does answer my question perfectly :)  I like the idea of steady voltage pickup, smoother operation.  Thanks

  • Member since
    May 2008
  • 4,612 posts
Posted by Hamltnblue on Monday, February 14, 2011 3:38 PM

Oh and welcome to the forums.  Welcome

Let us know how your layout progresses and post a few pics if you have a digital camera.

Springfield PA

  • Member since
    March 2007
  • From: South Carolina
  • 1,719 posts
Posted by Train Modeler on Wednesday, February 16, 2011 6:11 AM

You should handle your DCC reverse loops similar to your DC loops.    If you check the voltage with ordinary equipment you would use AC, but it's really pulsed DC.     There is polarity.    The reverse loop can be automatically switched with a PSX-AR.    A very fast acting reverse switch keeps the system from faulting.

Richard

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