replies within...

--- In Doepfer_a100@yahoogroups.com , "n keller"
<nirokesan@h...> wrote:

>
> Hey peter....!
> Funny you should reply, I was on your site last night to see if

you had

> instructions/plans for how you built your frankencase.

My site's actually up That's a switch!

If you want to make my cabinet, it's really very easy. the main
cab cost me $35 US, not including another $20 for the paint job.
Basicallty I designed the side panel shape in Freehand, took it to
my local Kinko's and had a full size printout done. I bought 3/4
inch MDF, had it cut into squares the same size as the printout
got that and rubber cemented it right to the side of the material
and used an electrical jigsaw and just cut out the line - totally
simple. I just put the rubber cement under the printed line so it
wold be easy to peel - i didn't slap it on like wallpaper with rubber
cement over every inch of the backside, that wold have been a
mess. The rubber cement sands off in a second once it's cut out
and the paper removed. I then used the cut out piece as the
template for the other side - traced with a pen around the cut
piece to the uncut one and repeated the process. The important
thing to remember is when you sand them, stack and clamp
them next to each other and sand both at the same time - this
way they end up identical. Use a power sander, you'll be able to
smooth everything out perfectly.


I've still got the Freehand file, which I can convert to a PDF for you
if you don't sport that program. Tell me if you're interested, I'll
send it on over.

> So here's the deal. I built SIX custom cabinets, which stack

together

> to make a two franken-towers. Top four cabinets hold a G6 or

more each

> with its own PSU, just like they come new.
>
> Now the bottom two cabinets are a bit different as they are

very shallow

> because of the angle. They required that I make some custom

rack ears and

> mounting rails. I took the bus boards from two G6 cases (

these cases are

> no longer being used, right now anyway) and mounted them in

the new

> cabinets. I took the PSUs from the two G6s and mounted them

also. One of

> the G6's was bought used and did not have the MAINS INLET,

also the cabinet

> is too shallow to mount the G6 back plate which normally

holds the switch.

> Oh, also both cabinets will eventually have two rows of

modules each and I

> thought that might be too much for one PSU2.

You can use any old switch and fuse holder if fit or mounting is a
problem. If you do that - the power switch and fuse goes on one
side of the AC to the Doepfer transformer - the other side of the
AC goes directly from the wall to the transformer. The wall
ground (called cold water pipe gorund) needs to attach as it was
with the Deopfer assembly - I believe that's going to the gorund
output of the PSU and to the chassis (metal), right This is
done to meet Euro power regulations (grounding the faceplates
of the units).

If its the old type PSU, it's good for what...600 mA I think. The
new one is over twice that. The current draws are listed on the
module pages on the Doepfer site. just add those up and bang -
there's your answer.

>
> SO............. I thought it would be best to steal the mains power

from

> one G6's mains switch and run the wires to the other PSU. Or

I should get

> another mains switch with fuse, I just want to get things

running asap. All

> the wiring is done, good mains cable stuff. Just waiting for an

answer so I

> don't start a fire or something.

The Doepfer PSU has the best heast sink configuration on the
planet - those things are HUGE. Don't think a fire will occur,
unless the unit is mounted in some totally airless environment
and mounted to something which will catch on fire at the
slightlest raise in temoprature. Just make sure there is air flow
over the blades of the heatsink (vent holes if in a box, or a
backless cabinet is even better.

Once you get it all wired up and fused and everything - turn it one
WITHOUT ANY MODULES installed. carefully read the voltages
at all the backplanes to make sure the ight voltage is coming
from the right pins on the power connectors. really take yur time
with this. install one module to each of the powerplanes, repeat
the the process. If those all light up fine, chances are you've
done it right.

As afar as the fuse value - what is your wall voltage 115 at 60
hZ, 50 hZ 220 at 60 hZ - all this effects what fuse value to
install.

>
> Thanks
>
> nick
>
>
>
>
> >From: "(i think you can figure that out)" <peter@b...>
> >Reply-To: Doepfer_a100@yahoogroups.com
> >To: Doepfer_a100@yahoogroups.com
> >Subject: 1 Re: using mutliple PSUs in custom

frames......

> >Date: Tue, 25 Oct 2005 03:26:48 -0000
> >
> >Installing two PSUs in one cabinet may require a higher fuse.

It

> >all depends on what you're powering. The second unit itself

will

> >draw minimal current with no load on it. If nothing else make
> >sure you don't use a fast slow fuse, the increased power-on
> >serge from the two may take it out and that has nothing to do
> >with the load - it's just the jolt of the initial electrical serge into

the

> >system.
> >
> >Question is...why do you need to add a second supply The

new

> >one is over an amp, yes ...plenty powerful for any

combination

> >you can fit into a single cabinet. Hell, I beat you you could

power

> >two cabinets with one of those guys. Possibly you're
> >constructing a cabinet without a supply in it and housing it's

PSU

> >this other box
> >
> >If it is going into a the same cab, one thing you don't want to

do

> >however is mix the outputs of the two supplies on the power

rail.

> >This would very bad! If you stick two PSUs in one rack, get a
> >second power busboard.
> >
> >- P
> >
> >
> >
> > --- In Doepfer_a100@yahoogroups.com , "Nicholas Keller"
> ><nirokesan@h...> wrote:
> > >
> > > Hey.
> > >
> > > Now I know this stuff is "Suitable for qualified personnel

only

> > > because of electrical safety (dangerous mains voltage

115V /

> >230V)",
> > > but I'll ask anyway......
> > >
> > > I want to have two PSUs ( a PSU2 and an older NT12) fed

by

> >the same
> > > mains switch. DO I HAVE TO INCREASE THE FUSE or

not I

> >notice that
> > > the instructions for installing the +5V psu doesn't mention a
> >change
> > > of fuse. Can anyone give input, especially someone who

has

> >built such
> > > a custom psu array
> > >
> > > thanks
> > >
> > > nk
> > >
> >
> >
> >
> >
>
>

__________________________________________________
_______________

> Express yourself instantly with MSN Messenger! Download

today - it's FREE!

>

http://messenger.msn.click-url.com/go/onm00200471ave/direct/
01/

>