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Re: buzz buzz buzz - I wonder why it does?

To: ukha_d@xxxxxxx
Subject: Re: buzz buzz buzz - I wonder why it does?
From: Richard Malcolm-Smith <rich@xxxxxxx>
Date: Wed, 17 Apr 2002 19:24:42 +1200
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> Keith Doxey wrote: > > Thats an AUTO-TRANSFORMER. > > The 110V output is NOT isolated from the mains. > > A site transformer is fully isolated and centre tapped so each of the > output leads is 55V with respect to earth. All the stepdown transformers I have ever bought have being auto transformers. Some places sell ones that are isolating, but they have no connection to the secondary at all (Floating) - small ones are wonderfull for solving ground loop problems with audio where cutting the earth just seems wrong. What exactly is a site transformer? How does it differ from a normal (isolated) one?

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