From: BobEngelhardt@comcast.net   
      
   I was looking for a 120-120 isolation transformer on eBay and I kept   
   finding 120-240/480 transformers.  There are 2 secondaries on these   
   (connect in parallel or series).  It occurred to me that I could use one   
   of these as a 120-120 by using one secondary as input and the other   
   secondary as output.  I know that this is theoretically possible, but   
   are there practical reasons why it wouldn't work?   
      
   Also: if one of these 120-240/480 transformers is rated 500VA, that   
   means 1 amp on the secondary, right?  I.e., 1A at 480v.   
      
   Thanks,   
   Bob   
      
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