Subject:
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Re: Does anyone know how to modify a train controler?
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Newsgroups:
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lugnet.trains
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Date:
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Fri, 26 Oct 2001 14:36:41 GMT
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Viewed:
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1074 times
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"Jason J. Railton" wrote:
>
> In lugnet.trains, Sonnich Jensen writes:
> > My solution was to add a resistor over them (picture later).
> >
> > Yes the lowest is 2.9V. By adding a resistor over them all makes i affect
> > the higher settings more than the lower ones. This is right for less that
> > 2.9V is not enough for the motor to move.
> >
> > And there is no danger by supplying 12V or more, unless the regulator is
> > modifyed it can NEVER give more than 9V. So one can not speed up the trains
> > this way.
> >
> > By using another transformer it should be considered that there is a loss in
> > the regulator, I don't the datasheets for the LM317 handy, but guessing that
> > 1.2 volts is lost in the controller.
> >
> > Also it depends a lot whether it is AC or DC.
> > The regulator says that it needs 9-10V AC which is some 13-14V DC. So if
> > ones transformer says 9VAC it makes no difference as it is 13V DC and a
> > stepdown of 1.2V is 11.8V so it can still supply the full 9V.
> > 9VDC would make maximim app. 7.8V. But it would also make it so, that the
> > last steps will be the same.
> > Therefore a resistor still uses the full adjustment possible.
> >
> > See you in 2 weeks
> > Sonnich
>
> Well, I want to modify mine to output a constant 9V for powering technic
> motor gadgets (e.g. point motors). I've just got some polarity switches,
> and I want to fit them on my controller.
>
> I've been advised to wire up my own 9V regulator with a heatsink - I'll let
> you know if it works.
>
> Jason J Railton
I use the standard, unmodified, train controller for technic. Just have
it at max power and you have 9 volts.
Dean
--
Dean Husby
LUGNET Member #320
TFM's LEGO Workshop - http://www.akasa.bc.ca/tfm
The Vancouver LEGO Club - http://www.akasa.bc.ca/vlc/
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Message has 1 Reply:
 | | Re: Does anyone know how to modify a train controler?
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| (...) And you also have trains all over the floor, if you happen to have just the one controller. Thank you, but I'll take it under advisement :-) The point is that you take off a steady 9V and feed it into a bank of polarity switches. These then (...) (23 years ago, 26-Oct-01, to lugnet.trains)
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Message is in Reply To:
| | Re: Does anyone know how to modify a train controler?
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| (...) Well, I want to modify mine to output a constant 9V for powering technic motor gadgets (e.g. point motors). I've just got some polarity switches, and I want to fit them on my controller. I've been advised to wire up my own 9V regulator with a (...) (23 years ago, 26-Oct-01, to lugnet.trains)
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