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Minimum distance from PSU2 ? ( audio interference )

Minimum distance from PSU2 ? ( audio interference )

2006-10-05 by glabbeur

Hi list ( newbie here )

I'll get my system soon and it will be disbalanced towards modules 
subject to interferences by the PSU2 so is there some rough minimum 
radius from the copper coil ?
I will put of course the LFOs and such in front of the coils but it 
may not be enough for the " on the sides modules " ...

Thanks in advance !

Re: [Doepfer_a100] Minimum distance from PSU2 ? ( audio interference )

2006-10-05 by Ross Goniakowski

?????
   
  is this some kind od real or imagined problem?

glabbeur <benhure@noos.fr> wrote:
          Hi list ( newbie here )

I'll get my system soon and it will be disbalanced towards modules 
subject to interferences by the PSU2 so is there some rough minimum 
radius from the copper coil ?
I will put of course the LFOs and such in front of the coils but it 
may not be enough for the " on the sides modules " ...

Thanks in advance !



         


[Non-text portions of this message have been removed]

Re: Minimum distance from PSU2 ? ( audio interference )

2006-10-06 by selfoscillate

i'm not good in electrics, but i don't think that the
psu2 should produce any interference at all.
but well, maybe someone else can tell us more?

best wishes

ingo



--- In Doepfer_a100@yahoogroups.com, Ross Goniakowski <carfull@...> 
wrote:
Show quoted textHide quoted text
>
> ?????
>    
>   is this some kind od real or imagined problem?
> 
> glabbeur <benhure@...> wrote:
>           Hi list ( newbie here )
> 
> I'll get my system soon and it will be disbalanced towards modules 
> subject to interferences by the PSU2 so is there some rough minimum 
> radius from the copper coil ?
> I will put of course the LFOs and such in front of the coils but it 
> may not be enough for the " on the sides modules " ...
> 
> Thanks in advance !
> 
> 
> 
>          
> 
> 
> [Non-text portions of this message have been removed]
>

Re: Minimum distance from PSU2 ? ( audio interference )

2006-10-06 by glabbeur

Thanks Ingo ! well I asked that because of this paragraph in the 
accessories - 6U cases :

" No audio processing modules (e.g. VCO, VCF, VCA, VCP, VCFS, Ring 
Modulator, Spring Reverb) should be mounted near the power supply but 
only control voltage modules (e.g. ADSR, LFO, S&H, Slew Limiter, 
Trigger Delay, Sequencer, Quantizer, Clock Divider, MIDI-Interfaces) "


--- In Doepfer_a100@yahoogroups.com, 
"selfoscillate" <synaptic_music@...> wrote:
>
> 
> i'm not good in electrics, but i don't think that the
> psu2 should produce any interference at all.
> but well, maybe someone else can tell us more?
> 
> best wishes
> 
> ingo
> 
> 
> 
> --- In Doepfer_a100@yahoogroups.com, Ross Goniakowski <carfull@> 
> wrote:
> >
> > ?????
> >    
> >   is this some kind od real or imagined problem?
> > 
> > glabbeur <benhure@> wrote:
> >           Hi list ( newbie here )
> > 
> > I'll get my system soon and it will be disbalanced towards 
modules 
> > subject to interferences by the PSU2 so is there some rough 
minimum 
> > radius from the copper coil ?
> > I will put of course the LFOs and such in front of the coils but 
it 
Show quoted textHide quoted text
> > may not be enough for the " on the sides modules " ...
> > 
> > Thanks in advance !
> > 
> > 
> > 
> >          
> > 
> > 
> > [Non-text portions of this message have been removed]
> >
>

Re: Minimum distance from PSU2 ? ( audio interference )

2006-10-09 by selfoscillate

i believe that this paragraph is valid for the old psu1 only.

best wishes

ingo



--- In Doepfer_a100@yahoogroups.com, "glabbeur" <benhure@...> wrote:
>
> Thanks Ingo ! well I asked that because of this paragraph in the 
> accessories - 6U cases :
> 
> " No audio processing modules (e.g. VCO, VCF, VCA, VCP, VCFS, Ring 
> Modulator, Spring Reverb) should be mounted near the power supply 
but 
> only control voltage modules (e.g. ADSR, LFO, S&H, Slew Limiter, 
> Trigger Delay, Sequencer, Quantizer, Clock Divider, MIDI-
Interfaces) "
> 
> 
> --- In Doepfer_a100@yahoogroups.com, 
> "selfoscillate" <synaptic_music@> wrote:
> >
> > 
> > i'm not good in electrics, but i don't think that the
> > psu2 should produce any interference at all.
> > but well, maybe someone else can tell us more?
> > 
> > best wishes
> > 
> > ingo
> > 
> > 
> > 
> > --- In Doepfer_a100@yahoogroups.com, Ross Goniakowski <carfull@> 
> > wrote:
> > >
> > > ?????
> > >    
> > >   is this some kind od real or imagined problem?
> > > 
> > > glabbeur <benhure@> wrote:
> > >           Hi list ( newbie here )
> > > 
> > > I'll get my system soon and it will be disbalanced towards 
> modules 
> > > subject to interferences by the PSU2 so is there some rough 
> minimum 
> > > radius from the copper coil ?
> > > I will put of course the LFOs and such in front of the coils 
but 
Show quoted textHide quoted text
> it 
> > > may not be enough for the " on the sides modules " ...
> > > 
> > > Thanks in advance !
> > > 
> > > 
> > > 
> > >          
> > > 
> > > 
> > > [Non-text portions of this message have been removed]
> > >
> >
>

AW: [Doepfer_a100] Re: Minimum distance from PSU2 ? ( audio interference )

2006-10-09 by hardware@doepfer.de

Right. Even the PSU2 transformer generates a small magnetic field but it is
much smaller that those of the old PSU1. So far we never detected any hum
noise even for modules mounted very close to the PSU2. In any case a safety
distance of at least 2-3 cm (i.e. about 1 inch) between transformer and
module should be kept. For standard frames that's no problem but for
suitcases some deeper modules (e.g. A-113, A-126) should not be or cannot be
mounted above the PSU2.

Best wishes
Dieter Doepfer
Show quoted textHide quoted text
> -----Ursprüngliche Nachricht-----
> Von: Doepfer_a100@yahoogroups.com
> [mailto:Doepfer_a100@yahoogroups.com]Im Auftrag von selfoscillate
> Gesendet: Montag, 9. Oktober 2006 11:53
> An: Doepfer_a100@yahoogroups.com
> Betreff: [Doepfer_a100] Re: Minimum distance from PSU2 ? ( audio
> interference )
>
>
>
> i believe that this paragraph is valid for the old psu1 only.
>
> best wishes
>
> ingo
>
>
>
> --- In Doepfer_a100@yahoogroups.com, "glabbeur" <benhure@...> wrote:
> >
> > Thanks Ingo ! well I asked that because of this paragraph in the
> > accessories - 6U cases :
> >
> > " No audio processing modules (e.g. VCO, VCF, VCA, VCP, VCFS, Ring
> > Modulator, Spring Reverb) should be mounted near the power supply
> but
> > only control voltage modules (e.g. ADSR, LFO, S&H, Slew Limiter,
> > Trigger Delay, Sequencer, Quantizer, Clock Divider, MIDI-
> Interfaces) "
> >
> >
> > --- In Doepfer_a100@yahoogroups.com,
> > "selfoscillate" <synaptic_music@> wrote:
> > >
> > >
> > > i'm not good in electrics, but i don't think that the
> > > psu2 should produce any interference at all.
> > > but well, maybe someone else can tell us more?
> > >
> > > best wishes
> > >
> > > ingo
> > >
> > >
> > >
> > > --- In Doepfer_a100@yahoogroups.com, Ross Goniakowski <carfull@>
> > > wrote:
> > > >
> > > > ?????
> > > >
> > > >   is this some kind od real or imagined problem?
> > > >
> > > > glabbeur <benhure@> wrote:
> > > >           Hi list ( newbie here )
> > > >
> > > > I'll get my system soon and it will be disbalanced towards
> > modules
> > > > subject to interferences by the PSU2 so is there some rough
> > minimum
> > > > radius from the copper coil ?
> > > > I will put of course the LFOs and such in front of the coils
> but
> > it
> > > > may not be enough for the " on the sides modules " ...
> > > >
> > > > Thanks in advance !
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > > [Non-text portions of this message have been removed]
> > > >
> > >
> >
>
>
>
>
>
>
>
>
> Yahoo! Groups Links
>
>
>
>
>
>
>
>
>
>

Re: Minimum distance from PSU2 ? ( audio interference )

2006-10-09 by glabbeur

Thanks again Dieter !
I was afraid to sacrifice some " safety space " with blind panels, I 
will keep in mind the minimum 2-3 cm since it will be a suitcase ...


--- In Doepfer_a100@yahoogroups.com, <hardware@...> wrote:
>
> Right. Even the PSU2 transformer generates a small magnetic field 
but it is
> much smaller that those of the old PSU1. So far we never detected 
any hum
> noise even for modules mounted very close to the PSU2. In any case 
a safety
> distance of at least 2-3 cm (i.e. about 1 inch) between transformer 
and
> module should be kept. For standard frames that's no problem but for
> suitcases some deeper modules (e.g. A-113, A-126) should not be or 
cannot be
> mounted above the PSU2.
> 
> Best wishes
> Dieter Doepfer
> 
> 
> > -----Ursprüngliche Nachricht-----
> > Von: Doepfer_a100@yahoogroups.com
> > [mailto:Doepfer_a100@yahoogroups.com]Im Auftrag von selfoscillate
> > Gesendet: Montag, 9. Oktober 2006 11:53
> > An: Doepfer_a100@yahoogroups.com
> > Betreff: [Doepfer_a100] Re: Minimum distance from PSU2 ? ( audio
> > interference )
> >
> >
> >
> > i believe that this paragraph is valid for the old psu1 only.
> >
> > best wishes
> >
> > ingo
> >
> >
> >
> > --- In Doepfer_a100@yahoogroups.com, "glabbeur" <benhure@> wrote:
> > >
> > > Thanks Ingo ! well I asked that because of this paragraph in the
> > > accessories - 6U cases :
> > >
> > > " No audio processing modules (e.g. VCO, VCF, VCA, VCP, VCFS, 
Ring
> > > Modulator, Spring Reverb) should be mounted near the power 
supply
> > but
> > > only control voltage modules (e.g. ADSR, LFO, S&H, Slew Limiter,
> > > Trigger Delay, Sequencer, Quantizer, Clock Divider, MIDI-
> > Interfaces) "
> > >
> > >
> > > --- In Doepfer_a100@yahoogroups.com,
> > > "selfoscillate" <synaptic_music@> wrote:
> > > >
> > > >
> > > > i'm not good in electrics, but i don't think that the
> > > > psu2 should produce any interference at all.
> > > > but well, maybe someone else can tell us more?
> > > >
> > > > best wishes
> > > >
> > > > ingo
> > > >
> > > >
> > > >
> > > > --- In Doepfer_a100@yahoogroups.com, Ross Goniakowski 
<carfull@>
Show quoted textHide quoted text
> > > > wrote:
> > > > >
> > > > > ?????
> > > > >
> > > > >   is this some kind od real or imagined problem?
> > > > >
> > > > > glabbeur <benhure@> wrote:
> > > > >           Hi list ( newbie here )
> > > > >
> > > > > I'll get my system soon and it will be disbalanced towards
> > > modules
> > > > > subject to interferences by the PSU2 so is there some rough
> > > minimum
> > > > > radius from the copper coil ?
> > > > > I will put of course the LFOs and such in front of the coils
> > but
> > > it
> > > > > may not be enough for the " on the sides modules " ...
> > > > >
> > > > > Thanks in advance !
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > > [Non-text portions of this message have been removed]
> > > > >
> > > >
> > >
> >
> >
> >
> >
> >
> >
> >
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
>

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