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Re: Motor driven variac (fwd)



Subject: 
        Re: Motor driven variac (fwd)
  Date: 
        Thu, 20 Mar 1997 11:14:34 -0500 (EST)
  From: 
        "Jason Edward Pecor" <pecorjas-at-pilot.msu.edu>
    To: 
        tesla-at-pupman-dot-com (Tesla List)


What exactly does a Variac do?  Is it some sort of Spark Gap?