[Milsurplus] DM-33A

[WA5CAB at cs.com]

John,

There are no slip rings.  If the commutators are deeply grooved, the only 
cure is to disassemble the unit, remove the armature, and turn them down in a 
lathe.  Then you must undercut the mica spacers, which unfortunately 
requires a special attachment.  And install new brushes.

However, if the commutator surfaces are still smooth but only turned dark, 
and the brushes are still good, there's really no need to do anything.

In a message dated 11/30/2009 11:35:58 AM Central Standard Time, 
jpwatkins9 at yahoo.com writes: 
> Any hints on cleaning the slip rings and armature on this puppy?
> 
> Thanks,
> 
> John  WD5ENU/A45XV
> 

Robert Downs - Houston
wa5cab dot com (Web Store)
MVPA 9480