If you don't isolate the frog, it will short because the rails connected to it on the side away from the points are opposite polarity. If you don't isolate on the point side, you would have to either rely on point contact to switch the polarity of the point rails or you would need to install a switch. I don't power my frogs, so isolation is mandatory to prevent a short. After isolating the frog, I install non-switched drops to the point rails. I find this set-up very reliable without wiring switches to the frogs and have had no trouble even with short wheelbase 4 wheel locos powered by a Black Beetle.
Ed Kozlowsky Sanford, Maine From: Ed <[email protected]> >To: [email protected] >Sent: Friday, August 5, 2011 3:52 PM >Subject: {S-Scale List} Re: Cutting Gaps at Frogs > > > >> Isolate your frogs and power them separately! It's the only way to go. >> Tom Hawley > >Tom...What is the reason you want to isolate your frogs? Merely stating a >belief does not make it true. Is there a real reason, or are folks merely >following what some magazine article claims is the "only way to go". Still >curious....Ed L. > > > > > [Non-text portions of this message have been removed] ------------------------------------ Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/S-Scale/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/S-Scale/join (Yahoo! ID required) <*> To change settings via email: [email protected] [email protected] <*> 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/
