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Ground Loop isolator homebrew

Discussion in 'Electronic Basics' started by Ken C, Feb 26, 2006.

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  1. Ken C

    Ken C Guest

    I am looking for a simple circuit for eliminating ground loops on
    various audio circuits (max is headphone-type power, say 2 watts).

    I could use 1:1 audio transformers or 0.1uF caps. What are the
    advantages/disadvantages of each?

    Ken C
     
  2. Audio transformer: disadvantages is that they are either crappy or expensive
    (~$50 per channel), and bulky. Advantage is they work well and, if good
    quality, sound excellent.

    Capacitor: advantage is it is cheap and small. Disadvantage is that it does
    nothing at all to solve ground loops. Also, for headphone or speaker
    impedances, you'd need a lot more than 0.1uF - think more like 100uF, or
    more depending on impedance.
     
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