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Re: [motm] Power distibution in Bill and Will's medium size Synth

2007-02-20 by Richard Brewster

I don't remember what I may have said about interference between 
modules.  I did try to follow some advice from Ken Stone and separate 
out digital type modules -- especially modules like the CGS Burst 
Generator -- onto a separate power supply.  These are collected in a 
cabinet oriented toward digital, having sample and holds, noise, pulse 
dividers, and so on.   In actual practice I have not encountered any 
"interference" type problems; I was just being proactive.

Since your list is all MOTM, and since these are just about the lowest 
noise modules around, I don't think you have much to worry about.  But 
make sure you can swap your modules around.  Then, if you ever do detect 
interference (noticeable, audible interference that you can relate to 
some event, such as a sample and hold being triggered), you will be able 
to move modules to share different power supplies, which could address 
the issue.

Richard Brewster
http://www.pugix.com

wjhall11 wrote:
> There's no doubt that we're pushing the limit... and if we want to add
> more modules - well - we'll need more power.
>
> So here's our question:
>
> GIVEN THAT 
> - although using the two power supplies may be OK during construction
> and initial testing of our synth
>
> AND GIVEN THAT
> - we think we ultimately need to add an additional 900 power supply
>
> HOW do you recommend 
> - we connect the above modules to the (2) 900s and (1) 950 to minimize
> the interference mentioned by Richard Brewster?
>
> Thanks much.
>
> Bill and Will
>
>
>

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