I hear a diesel engine on my layout again!

Discussion in 'HO Scale Model Trains' started by interurban, Jan 17, 2005.

  1. CN1

    CN1 Active Member

    Interurban, simple? :eek: :confused: :eek:

    Correct me if I'm wrong: :)

    *Polarity is same as tracks (+ on one side, - on the other)
    *Change power from the track to overhead wire - or replace all wheels to insulated in case I want that specific loco to run on overhead power only
    *Install switch to change power from the track to the overhead, and vice-versa.

    Is there a way to route power to the catenary’s that’s straightforward?
    What do you use for isolator?
    How about a working pantograph, is it complicated to wire up?
    Do you have to change the shoes often?
    What kind of wire do you use?

    :eek: ;)

    Thx :wave:
  2. jetrock

    jetrock Member

    You generally don't have to change the shoes on a pan unless you run them A LOT--if you're only running pantograph you can make like the prototype and zig-zag the wire so you don't wear a groove on the pantograph.

    It's actually a bit simpler than that--if you're setting up a layout that is ALWAYS trolley (both rails grounded to same polarity, trolley pole reverse) then things are backwards, but if you want to run trolleys and diesels/steam on the same track it is internally consistent. Installing an SPDT switch in the trolley equipment to allow one to choose whether power pickup is from overhead or 2nd rail is all that is needed.

    Actual power distribution to the wires is typically done through the poles (if brass) or through feeder wire (if piano wire or wood) to each pole. Trolley wire tends to lose power over a comparatively short length...
  3. interurban

    interurban Active Member

    Hi Jet I have used dptd on two units. I could then run them on friends L/O with no overhead.
    Overhead wire I buy from the USA 026 gauge I think for H O Phophate Bronze
    500 ft for $12 us

    C N 1, Pans are the best for power pick up.(my opinion)
    Dont forget the description I gave first was for running both 2 rail and overhead on the same track, but not at the same time, hence the center off switch.
    That allows both types to sit on the same track with out any shorting out.
    Then you flick the switch to power either one.

    Insulation??? If you mean wiring the unit for pan or trolly pole then yes.
    You insulate them from the body if it`s metal.
    I strip thick wire and use the covering ( tube) to fit the screw through to the pan. :)

    When I get into buiding the new L/O I will take pics and post as I get the chance, Then this wiring problem will look as easy as it can be honest. ;)
  4. Chessie6459

    Chessie6459 Gauge Oldtimer

    Can't wait to see what you come up with next and can't wait to see what the new layout will look like. :wave:
  5. spitfire

    spitfire Active Member

    Geeze, ya go to work for a day and miss all the good stuff!!!

    Looks great Chris - must be fun having diesels and overhead on one layout. Hope to do the same myself one day. :D :D

  6. CN1

    CN1 Active Member


    Can't wait to see your “how to” pictures. It will help for sure. :D :thumb:

    For now I will string wires trough catenaries, but I won’t put the “juice” to it. The tracks will remain the power source. I’ll start looking at pantograph.

    Thanks for the tips, keep them coming :thumb: :wave: :wave:
  7. interurban

    interurban Active Member

    Your welcome CN 1 :)

    It will be Feb To March before this knee will let me get serious with the new L/O. :wave:
    Till then check out the Marklin Pans, they have a fine selection and your dealer should have no problem getting them.

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