Alex I am responding against my better judgement as I can barely solve my own problems. since you are hooking up feeder wires and that is causing the short, I suspect that there is a pair of wires on that buss somewhere that are possibly crossed. From what I can tell from your description the problem is on the upper level ?? If the upper level is a loop that feeds back down to the lower level, it may be acting as a reversing loop to the lower section and a polarity problem can exist there. I doubt that doing any scenery work using non conductive materials is causing your problem. Any end of track bumbers installed? One way you can track down the problem is using your multi meter. set it on ohms on a low scale like RX1 and clip it to the feeder wires you removed from the power supply, then isolate sections one at a time till the short goes away. These problems are a real bugger, I spent two evenings on a friends layout looking for a short. We found a piece of brass tubing under the tracks and ballast used as a conduit for a switch throw wire. The tubing has been there for years and just decided to short out the two rails it was under. Remember now....... Model railroading is FUN !!!
Good Luck Joe Visintine Bringing the GM&O back to life in "S" Change your membership, change your message settings, use our CALENDAR, view shared files or photos, view the list archives, GO TO http://groups.yahoo.com/group/S-Scale/ Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/S-Scale/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
