I'm just starting layout building and track laying and am having a senior moment over DCC turnout wiring. There are likely to be three turnout configurations, toe to toe, toe to heel and heel to heel. Turnouts are DCC friendly, ie isolated live frog with polarity switching and will be a mixture of Micro Engineering On30 as supplied and Peco code 83 which I have modified by exchanging the tie bars for fewer, larger spiked wooden ones. Apart from using insulated rail joiners on the Peco frogs to isolate their heel ends as they are not "gapped" at that end like the ME ones, where else, if anywhere, do I need insulating rail joiners? I know I knew the answer to this once, but it was a long time ago and I'm just getting more forgetful as I get older!
Hi Herb. Just to sort out the cruelty record, my frogs are still alive - they're just isolated!
Martin, thanks for that but I have to admit that's the first place I looked before asking the question. Loads of information but I can't extract the bit that I need. I may have found an answer here http://www.a19modelrailwayclub.org/dccworkshop3.php but I'm still getting my head round it as it seems to suggest that as long as the frog ends are isolated, nothing else is needed.