slow down in tunnel

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fancyfifer
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Joined: Tue Sep 18, 2012 4:23 pm

slow down in tunnel

Postby fancyfifer » Fri Sep 21, 2012 9:45 am

I remember years ago reading of a way of slowing down a train while in a tunnel or covered section so it did not appear at the other end seconds later, as I remember it involved installing a resistor or some other electronic piece on the track, any information on this subject would be appreciated.

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luckymucklebackit
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Re: slow down in tunnel

Postby luckymucklebackit » Fri Sep 21, 2012 10:42 am

This Signature Left Intentionally Blank, but since I have written this and I intended to do it, this Signature is intentionally not blank. Paradox or What?
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Essex2Visuvesi
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Re: slow down in tunnel

Postby Essex2Visuvesi » Fri Sep 21, 2012 11:46 am

quick and dirty method for DC running below

Fleischmann do a suitable Variable resisor part number 6954
http://www.amazon.co.uk/Fleischmann-695 ... B0007XUYI8
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Andrew S Harvey
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Re: slow down in tunnel

Postby Andrew S Harvey » Fri Sep 21, 2012 4:07 pm

Or you could try turning the knob on the controller own! :D

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Flashbang
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Re: slow down in tunnel

Postby Flashbang » Fri Sep 21, 2012 4:41 pm

Hi
If you opt for variable resistance don't be tempted to use a variable pot as supplied for radio/hi fi use. Their current rating is well below any locos motor current and they will quickly burn out.

The other options are to use a stand alone controller to feed the isolated slow down section, even a cheap Train set controller will do the job. Or use a variable voltage regulator circuit where the output of the regulator feeds the isolated section.
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peroni
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Location: Australia

Re: slow down in tunnel

Postby peroni » Fri Sep 21, 2012 11:09 pm

This is the unit that I used when I was using DC, I have gone to DCC these days.

http://talkingelectronics.com/projects/ ... tcher.html

fancyfifer
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Joined: Tue Sep 18, 2012 4:23 pm

Re: slow down in tunnel

Postby fancyfifer » Sun Sep 23, 2012 11:38 am

thanks, that's a help


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