View Single Post
  #3  
Old 08-07-2016, 12:56 AM
radiotvnut's Avatar
radiotvnut radiotvnut is offline
VideoKarma Member
 
Join Date: Jul 2007
Location: Meridian, MS
Posts: 6,018
There is a round metal disc that is attached to shaft of the motor (coming out of the bottom of the motor). When the lever is moved, it moves a magnet close to the disc and the magnetic field alters the motor speed.
Reply With Quote