[R-390] OT: Scratchy speaker

[Scott, Barry (Clyde B)]

More investigation into this Zenith T.O.  The speaker appears to have
something in the voice coil that is rubbing its magnetic housing.  It causes
a buzz at frequencies around 200 cps.  The cone itself is in good shape.

If I remove the felt center cover, is there anything in there I might could
fix myself or is this a case of a blown coil and best to find a replacement?
I haven't done much other than fix tears in cones so I figure this is
something more like meter repair where I can do much more damage than good
in a very small amount of time.

Thanks,

Barry(III) - N4BUQ