Hi,

 

Chris made a very good point about ring magnets for damping.  I have found
they are quite ineffective unless a center pole is added and 2 rings are
used in opposition with center poles added.   That is, a N center pole
across from a S center pole through the damping plate.  Do not use a front
pole such as on a speaker magnet.  Let the rings be the other poles and the
damping plate must extend past the ring edges.  For a center pole I use a
backplate with washers and bolt head to the level of the bare ceramic ring
and smaller diameter than the center hole.  The extension of the bolt then
can be used to hold separation of the magnet assemblies if desired.  The end
result is bulky and less effective than the Neo magnet design but can work
much better than a bare ring.  I could not damp my vertical with 2 bare
rings but in this configuration the same 2 rings will easily over damp.

 

Randy

 














Hi,

 

Chris made a very good point about ring magnets for
damping.  I have found they are quite ineffective unless a center =
pole is
added and 2 rings are used in opposition with center poles =
added.  
That is, a N center pole across from a S center pole through the damping
plate.  Do not use a front pole such as on a speaker magnet.  =
Let the
rings be the other poles and the damping plate must extend past the ring =
edges. 
For a center pole I use a backplate with washers and bolt head to the =
level of
the bare ceramic ring and smaller diameter than the center hole. =
 The
extension of the bolt then can be used to hold separation of the magnet
assemblies if desired.  The end result is bulky and less effective =
than
the Neo magnet design but can work much better than a bare ring.  I =
could
not damp my vertical with 2 bare rings but in this configuration the =
same 2
rings will easily over damp.

 

Randy