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Hi SD40-2
Welcome to the forum,
From your user name do you model U.S railroads ?
One of the E8's here flickered and a tightening of the screw retaining the contact cured it, though the circuit Poliss posted is bulletproof.
 

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Hi SD40-2,

Yes i model American here U.P of course
BNSF norfolk and southern deisel with PRR passenger locos an intermodal layout in the planning but N gauge due to space restrictions, mainly Kato and life like locos in DCC cleaning the wheels could be the solution also the track especially if it happens in certain areas you notice.
The best way to clean your wheels it to get a piece of kitchen tissue and use some Isopropyl alcohol, put a small amount of alcohol on the tissue (only enough to wet it) and lay across the track get the loco on top of the tissue the wheels lying as usual on the track and gently apply power hold the loco letting the wheels spin on the tissue , when you see black marks form turn the tissue to a clean part repeat running the loco on it and repeat until the tissue is clean finishing with a clean dry piece of tissue, if you have a piece of track seperate to the layout powered then it keeps any dirt away from your other tracks of course, do not put a load on the loco though by holding it too long while running.

Hope this helps ..............
 

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QUOTE (SD40-2 @ 1 Sep 2008, 10:23) <{POST_SNAPBACK}>Thanks upnick,i`ll try that first......................I`ll post some pics of my loft layout soon.........................


Very welcome SD40-2 ... look forward to the pictures
 

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QUOTE (SD40-2 @ 9 Sep 2008, 20:56) <{POST_SNAPBACK}>Well,i`ve cleaned the wheels and track again,but i still have flickering lights.
Could it be the actual light type,the locos have grain of wheat,rather than an actual LED??

Hi SD40-2,

If you have cleaned the wheels it could be the bulb type i'm not certain of course, while doing a clean on the wheels and checking the loco over i would fit LED lights if the problem hasnt gone away not only do they run without any heat (as GOW bulbs do leading to problems at a later date eg .... melted bodies ) but LED's look better and have a better life.
Of course a resistor needs to be fitted to LED lighting, here is a page dedicated to the wiring of LED's if you need it as a guide.

http://www.theledlight.com/ledcircuits.html
 
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