[sdiy] Noisy transformers and faraday cages

[Brett Maddaford]

Heya Raph

Well done, mines still being worked on and has been for over 18
months...other projects keep getting in the way.
So did you find any big issues and are you impressed with the outcome ;)

Cheers
Brett

-----Original Message-----
From: synth-diy-bounces at dropmix.xs4all.nl
[mailto:synth-diy-bounces at dropmix.xs4all.nl] On Behalf Of John Mahoney
Sent: Friday, 11 May 2007 03:13 
To: Altitude; synth-diy at dropmix.xs4all.nl
Subject: Re: [sdiy] Noisy transformers and faraday cages

At 12:20 PM 5/10/2007, Altitude wrote:

>I am wrapping up my 9090 drum synth and am wondering what would be the best
>way to provide some shielding to my fairly electrically noisy transformer
>(Hammond 30V CT @ 500mA).  The way the outputs are set up is that there is
>no real way to avoid running audio leads by the transformer and the noise
>goes down when the I move the leads away (the primary side is the worse)
and
>I am using shielded audio cable.  Would putting up a mesh or steel box
>around the transformer help in reigning in the noise? Any other
>recommendations?
>
>Cheers,
>Raph


Mu metal?
--
john


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