Nick C
Western Thunderer
Well this is odd...
I decided to have an operating session on the layout yesterday evening, to check it all worked after ballasting. It doesn't. It has a short - or rather, several. After a visual check of everything, and some prodding with the multimeter, I tipped the board up and started disconnecting feeds. Ended up cutting the lot - short still present. Checked all the cast crossings, all fine, no continuity between them and the adjacent rails.
Then jabbed the probes into the ballast - and at about 2mm distance, enough continuity to trigger the buzzer... So I think I have conductive ballast? Has anyone else seen that? Am I going crazy?
It only happens with the geoscenics siding ballast - doing the same with the woodland scenics on the running line shows open circuit, and indeed those rails don't have a short. Both were glued down with WWScenics ballast glue.
I decided to have an operating session on the layout yesterday evening, to check it all worked after ballasting. It doesn't. It has a short - or rather, several. After a visual check of everything, and some prodding with the multimeter, I tipped the board up and started disconnecting feeds. Ended up cutting the lot - short still present. Checked all the cast crossings, all fine, no continuity between them and the adjacent rails.
Then jabbed the probes into the ballast - and at about 2mm distance, enough continuity to trigger the buzzer... So I think I have conductive ballast? Has anyone else seen that? Am I going crazy?
It only happens with the geoscenics siding ballast - doing the same with the woodland scenics on the running line shows open circuit, and indeed those rails don't have a short. Both were glued down with WWScenics ballast glue.

