[sdiy] Noisy transformers and faraday cages

[John Mahoney]

At 10:43 PM 5/10/2007, Jeff Farr wrote:

>...  And ditto about the Mu-Metal too, but it's
>somewhat hard to find and expensive.

Cheaper, more pliant mu metal alternatives:
         http://www.lessemf.com/mag-shld.html
I'm sure there are others.


>The best method really is to
>find some way of keeping the audio away from the transformer.

Absolutely. But when you can't, at least there are options.

There have been discussions on the dotcom modular list concerning 
certain modules that need to be kept away from the power supply -- I 
forget which, maybe it's the VCA, in particular? -- resulting in 
compromised module arrangements (you can't put them all where you 
want them to be). Shielding with one of these metals should rectify 
that problem, right?
--
john


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