Subject:
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Re: New page about #4548 Train Controller.
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Newsgroups:
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lugnet.trains
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Date:
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Fri, 26 Jul 2002 21:16:45 GMT
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Viewed:
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693 times
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I have been intesrted in this topic as well. Thanks for doing the schematic
work. I was thinking about about mounting a linear variable resistor aka
Thumbwheel Trim Pot (see: http://www.meci.com/images/450-0233.GIF) on the
PCB board opposite the power connector. (see:
http://www.hot.ee/sonnich/lego/ 1st picture). Then drilling a small hole in
the plastic case (again opposite the power connector hole) so that a small
screw driver and be used to adjust the Vmax output.
SteveB
In lugnet.trains, Sonnich Jensen writes:
> Once upon a time (...) there was a discussion about the 4548 Train
> Controller about how to limit output in order to limit speed of trains.
> That inspired me to create a page describing the problems with the Train
> Controller.
> I have created a schematic of the Train Controller and added different
> information about it on 2 new pages.
>
> You will find it all here:
> http://www.hot.ee/sonnich/lego/
>
> Click on the "new" link. As always, LMKWYT.
>
> Suggestions are also very welcome. Especially if anyone knows more about the
> heat zink in it (how much power can it handle?)
>
> Leg godt
> Sonnich Jensen
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Message has 1 Reply:
 | | Re: New page about #4548 Train Controller.
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| Just remember to add a resistor in serie with the variable resistor, so the total value never reaches 0. Something like 4k7 + 22k variable resistor... ? Steve Barile <steve.e.barile@intel.com> wrote in message news:GzvKFx.8Fo@lugnet.com... (...) (...) (22 years ago, 27-Jul-02, to lugnet.trains)
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Message is in Reply To:
| | New page about #4548 Train Controller.
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| Once upon a time (...) there was a discussion about the 4548 Train Controller about how to limit output in order to limit speed of trains. That inspired me to create a page describing the problems with the Train Controller. I have created a (...) (22 years ago, 26-Jul-02, to lugnet.trains)
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