Subject:
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Re: More Questions from Another Train Newbie
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Newsgroups:
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lugnet.trains
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Date:
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Mon, 22 Nov 1999 16:50:34 GMT
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Viewed:
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824 times
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In lugnet.trains, Frank Filz writes:
>
> Jim Rorstrom wrote in message ...
> >
> > >
> > > 1)This has to do with the fact that the regulators output voltage are • slightly
> > > different due to tollerance of the components.
> > > 2)You may NEVER connect the outputs from voltage regulators to each other
> > > without a serie resistor and appropriate electronic cirquitry.
> > > If you need a higher output current,you can use an other voltage regulator
> > > capable for higher output currents (you need then also a heavier • transformer
> > > too [more Amp.,at the same voltage]) .
> >
> > *** Warning *** Not a Lego purist application ***
> >
> > MRC Tech II throttles, well known in the model railroading world, solve • this
> > problem nicely. I have a passenger train with two locos (4 motors) which • is no
> > problem at all for my MRC throttle. I have had some of my train motors for
> > three years and have not burned any of them out. A cautionary statement, • MRC
> > throttles are 12 volt. This has not been a problem, however. When I first
> > hooked up the MRC throttle I did some test runs with a multi meter • monitoring
> > the voltage. I couldn't get over 6 volts without running the train off the
> > tracks. MRC throttles also make it easier to pull slowly away from train
> > stations and coupling cars.
>
>
> I also saw somewhere something about a new MRC throttle which has a switch
> which divides output voltage by two. This switch would guarantee that you
> couldn't put out too high a voltage.
>
> As far as connecting multiple controllers, it depends on the internal
> circuitry. The real problem you would have is that you have to run around
> turning off all the controllers to shut down the train. For huge layouts, it
> is probably time to abandon a pure LEGO solution. Use large gauge wire
> feeders to multiple points on the layout. Also, if you place feeders
> frequently enough, and make all the feeders the same length, you just create
> a system where overall the train runs slower than if the controller was
> directly connected to a small loop of track. Not a bad thing since the
> maximum speed is much too high. This solution of course can be kept LEGO
> pure, but it's going to be pricey to buy that many wire kits.
>
> To make non-pure feeders, I would take the LEGO feeder, and snip the wires
> about an inch away from the black cylinder (anyone know what that is? Is it
> a current limiting device?). Then strip the wire ends, and solder to a
I would say that it is a fuse, never tested it but by the weigth it is to ligth
to be a coil and also because a capacitor would be better help than a coil.
Martin
> heavier wire (optional - solder to some kind of connector). Cut the other
> end about an inch away from the 2x2 connector and solder to the other end of
> the heavier wire (or put another connector on).
>
> Unfortunately we can't do what many model railroaders to improve the
> electrical performance of their track... Soldering the rails would melt the
> plastic (not to mention being just as bad as glue...).
>
> Frank
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Message has 1 Reply:
Message is in Reply To:
 | | Re: More Questions from Another Train Newbie
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| Jim Rorstrom wrote in message ... (...) slightly (...) transformer (...) this (...) is no (...) MRC (...) monitoring (...) I also saw somewhere something about a new MRC throttle which has a switch which divides output voltage by two. This switch (...) (25 years ago, 21-Nov-99, to lugnet.trains)
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