and he notes - ..."I've always heard the permanent magnet can be weakened unless precautions are taken. Is there any truth to that?... "
Yes there is and what you need is a keeper. Keepers (or armatures) are bars of iron or steel which are placed across the poles of a permanent magnet. They complete the magnetic circuit and minimize demagnetization. It may take a while but the magnet could lose a lot of its force without them. A steel bar or even a nail or two will do. Raleigh in chilly Maine www.emporiumpictures.com At 09:49 PM 10/1/2008, Bill Roberts wrote: > > Posted by: "Robert Nicholson" > <mailto:user141771%40q.com>[EMAIL PROTECTED] shabbona_rr > > Date: Tue Sep 30, 2008 4:05 pm ((PDT)) > > >I have several Rex engines with DC-71 motors with various amounts of >play in the armatures. The motors are held together with screws, so >they should be easily disassembled. However, I've always heard the >permanent magnet can be weakened unless precautions are taken. Is >there any truth to that? > >-- >Bill Roberts > > [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: mailto:[EMAIL PROTECTED] mailto:[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/
