Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!bloom-beacon!usc!merlin.usc.edu!nunki.usc.edu!cyamamot From: cyamamot@nunki.usc.edu (Cliff Yamamoto) Newsgroups: sci.electronics Subject: Where to get quality transformers? (was Re: Define "GROUND" (& how to solve a "GROUND" loop prob)) Keywords: ground, loops, transformers Message-ID: <3996@merlin.usc.edu> Date: 4 Jun 89 14:47:45 GMT References: <3917@merlin.usc.edu> <3807@mit-amt> Sender: news@merlin.usc.edu Reply-To: cyamamot@nunki.usc.edu (Cliff Yamamoto) Distribution: na Organization: University of Southern California, Los Angeles, CA Lines: 11 In article <3807@mit-amt> rdsnyder@mit-amt (Ross D. Snyder) writes: >Another solution would be to install isolation transformers in the RCA cords >between the receiver and amp. This would eliminate DC continuity in the >lines and would prevent ground loops through the audio signal lines. Use >50Kohm:50Kohm audio transformers of good quality (like with shielding). ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Can anyone point me to a manufacturer or distributor of these kinds of transformers? The only big transformer company I know of is Stancor (sp?) and I don't think they make audio transformers :( Cliff