QUOTE (John Webb @ 29 Sep 2006, 10:45)
<{POST_SNAPBACK}>If I've read your diagram correctly, you've got the section switches the wrong way round. In one position the section will be powered from one controller, in the other position the two controllers will be connected together and nothing will go to the track!
The moving contact of the switch (usually the centre tab) needs to go to the track section, the controllers' output to one or other of the fixed contacts - usually the outer tabs.
Make the common line much larger than the section cable to minimise voltage drop - old 1sq mm lighting cable is ideal.
Re isolating sections: you only need one wire from isolating switch to the bit of track. Take the feed to the isolating switch from the cab control switch output for the section which the isolated track is part of.
'Railway Modelling - the Beginners Guide - No2 Baseboard, track and wiring' by Peco (50p) or their 'Wiring the layout - Part 1: First steps' for £1 booklet in their 'Shows you how' series show this in diagrams much better than I can draw here.
Hope this helps,
Regards,
John Webb
Thanks for the help John. I copied the switchs from a MRM magazine leaflet! but I can now see they are the wrong way round. Thanks the wiring suggestion to avoid voltage drop as well, sure I've got some of that lying around somewhere.