[sdiy] shielding question

[Andre Majorel]

On 2010-06-24 04:37 -0400, Travis Thatcher wrote:

> I am trying to put together a live rack consisting of (in top to
> bottom on the rack):  furman power conditioner, motu2408mkII,
> patchbay, roland gr-1 reverb, diy tb3031 + tbDac.
> 
> before the reverb was fine, sitting on top of the rack. in this
> configuration there's noise as it is resting on the 3031.  i can move
> it up a space, but still some nice hum. when i turn off the 3031, the
> hum is gone. all power is connected to the furman conditioner.

A wild guess : the TB-3031 is powered by an EI transformer and the
enclosure is made of aluminium ?

-- 
André Majorel http://www.teaser.fr/~amajorel/