MOTM

Wendy was using 30-year old equipment.

I have not had the pleasure of looking at a System 55 but I have the
schematics and ferrite beads ain't innem.  Considering that she was also
using a home built mixer and heavily altered Ampex tape decks, I'm betting
that the faraday cage was the most cost-effective way to get rid of the
noise when you look at the cost of dismantling every module and system in a
working studio.  You are also looking at better alloys for signal and power
connector contacts - less chance of rectifying a nearby 50,000 watt AM radio
station.

Dave

> -----Original Message-----
> From: motm@yahoogroups.com [mailto:motm@yahoogroups.com] On 
> Behalf Of John Mahoney
> Sent: Tuesday, September 12, 2006 6:54 PM
> To: 'MOTM litserv'
> Subject: RE: [motm] Cabinet shielding
> 
> 
> 
> >I'll chime in even though I'm saying the same thing that's been said:
> >shielding the cabinet isn't necessary. My modular is in the 
> same room as
> >half a dozen or so computers and other miscellaneous 
> electronic devices,
> >including some completely unshielded digital circuits on 
> breadboards, and I
> >don't seem to have any trouble with it picking up noise.
> 
> Oh, your modular is *completely* free of noise? ;-) Of course you 
> didn't say that, so consider this:
> 
> Wendy Carlos said that building a Faraday cage around her entire 
> studio reduced the noise level throughout. She concluded that RFI 
> (radio frequency interference) is usually heard as broadband noise. 
> So, where there's electrical noise (i.e. everywhere), there may well 
> be an RFI issue.
> 
> Fortunately, the noise level of good gear is low enough that we 
> needn't obsess over this. I'm sure not interested in shielding my 
> entire studio room! I'm not even sure how to do it.
> --
> john
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> Yahoo! Groups Links
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