MOTM

I've begun building a cabinet that will hold 20-25 MOTM modules  
(including an MOTM-650, which the site description says may draw  
575mA +/-15v). I believe that one MOTM-950 Dual Power supply won't be  
enough for the +/15v side.

What would be better? Installing an MOTM-900 Dual Power supply  
(outputting +/-15v @ 800mA) *and* an MOTM-950 Triple Power supply  
(outputting +5v @ 3A, and +/- 15v @ 400mA) or... replacing these with  
one upgraded Power-One Triple Power supply (such as model# HCBB-75W-A  
which outputs +5v @ 6A, +/-15v @ 1.5A)?

Cheers,

Cecil

I would stick the Power One HCBB in there.

Paul S.

----- Original Message ----- 

From: "Bryce Churchill" <sunecho@...>
To: <motm@yahoogroups.com>
Sent: Monday, July 23, 2007 9:00 PM
Subject: [motm] Triple + Dual vs. bigger Triple power supply


> I've begun building a cabinet that will hold 20-25 MOTM modules  
> (including an MOTM-650, which the site description says may draw  
> 575mA +/-15v). I believe that one MOTM-950 Dual Power supply won't be  
> enough for the +/15v side.
> 
> What would be better? Installing an MOTM-900 Dual Power supply  
> (outputting +/-15v @ 800mA) *and* an MOTM-950 Triple Power supply  
> (outputting +5v @ 3A, and +/- 15v @ 400mA) or... replacing these with  
> one upgraded Power-One Triple Power supply (such as model# HCBB-75W-A  
> which outputs +5v @ 6A, +/-15v @ 1.5A)?
> 
> Cheers,
> 
> Cecil
> 
> 
> 
> 
> Yahoo! Groups Links
> 
> 
> 
>

I ll second Paul s advice. When recently expanding my cabinet, I subbed out the power one unit that came with my 900 with the HCBB version. Make sure you know

Has anyone using one large triple supply experienced any problems with
interference from 5v modules?  I've read about the recommendation to keep 5V
digital modules (or maybe modules with lots of leds too?) on their own "dirty"
supply.  Maybe I'm remembering wrong.  Thanks.



--- Stephen Drake <makeme1witheverything@...> wrote:

> I'll second Paul's advice. When recently expanding my cabinet, I subbed out
> the power one unit that came with my 900 with the HCBB version. Make sure
> you know what you're doing before doing this, however. I don't use the 5
> volt output yet, but it's nice to know it's there if needed. Now I never
> have a problem with my 23 modules, including some blacet ones that draw a
> lot of power.
> Steve
> 
> On 7/23/07, Paul Schreiber <synth1@...> wrote:
> >
> >   I would stick the Power One HCBB in there.
> >
> > Paul S.
> >
> > ----- Original Message -----
> > From: "Bryce Churchill" <sunecho@... <sunecho%40sexkult.org>>
> > To: <motm@yahoogroups.com <motm%40yahoogroups.com>>
> > Sent: Monday, July 23, 2007 9:00 PM
> > Subject: [motm] Triple + Dual vs. bigger Triple power supply
> >
> > > I've begun building a cabinet that will hold 20-25 MOTM modules
> > > (including an MOTM-650, which the site description says may draw
> > > 575mA +/-15v). I believe that one MOTM-950 Dual Power supply won't be
> > > enough for the +/15v side.
> > >
> > > What would be better? Installing an MOTM-900 Dual Power supply
> > > (outputting +/-15v @ 800mA) *and* an MOTM-950 Triple Power supply
> > > (outputting +5v @ 3A, and +/- 15v @ 400mA) or... replacing these with
> > > one upgraded Power-One Triple Power supply (such as model# HCBB-75W-A
> > > which outputs +5v @ 6A, +/-15v @ 1.5A)?
> > >
> > > Cheers,
> > >
> > > Cecil
> > >
> >
> -- 
> ------------------------------------------------------------------
> Stephen Drake
> sduck409@...
> makeme1witheverything@...
> 


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I'll second Paul's advice. When recently expanding my cabinet, I subbed out the power one unit that came with my 900 with the HCBB version. Make sure you know what you're doing before doing this, however. I don't use the 5 volt output yet, but it's nice to know it's there if needed. Now I never have a problem with my 23 modules, including some blacet ones that draw a lot of power.

Steve

On 7/23/07, Paul Schreiber <synth1@speakeasy.net > wrote:

I would stick the Power One HCBB in there.

Paul S.

----- Original Message -----

It means knowing how to do the 120 (or 240) volt AC wiring to the power 
supply, switch, and fuse so that you wind up with a safe cabinet and 
don't electrocute yourself.  If you have not done this before, and don't 
do it right, it can be dangerous.  You don't find much beginner help on 
this topic online, because people don't want liability for giving you 
instructions and then you kill yourself.  AC wiring has to be done 
correctly, it has to be secure so as not to come loose, and it has to be 
properly insulated.  That's what you need to know and do.

Richard Brewster
http://www.pugix.com

eric f wrote:

> What is the "knowing what you're doing" end of this.  I need to do this...
>  
> thanks,
> eric f
>
> */Stephen Drake <makeme1witheverything@...>/* wrote:
>
>     I'll second Paul's advice. When recently expanding my cabinet, I
>     subbed out the power one unit that came with my 900 with the HCBB
>     version. Make sure you know what you're doing before doing this,
>     however. I don't use the 5 volt output yet, but it's nice to know
>     it's there if needed. Now I never have a problem with my 23
>     modules, including some blacet ones that draw a lot of power. 
>
>     Steve
>