Doepfer

As far as I can see that's carrying 12V from the external 'brick' of a Doepfer DIY kit, not a 240v 'PSU 2'. Not my case, but I have a DIY kit and was considering doing something similar (not XLR though) to allow for disconnection of the power brick.

Rich

--- In Doepfer_a100@yahoogroups.com, Florian Anwander <fanwander@...> wrote:

>
> Hello!
> 
> I am risking to be called a nitpicker now:
> 
> There is a DIY-rack in the photosection uploaded by acakveld. This case 
> is constructed in a extremely dangerous way. The XLR-Socket on the right 
> side in these pictures....:
> 
> http://xa.yimg.com/kq/groups/3183706/sn/483129258/name/first+light.jpg
> http://xa.yimg.com/kq/groups/3183706/sn/444387654/name/first+noise.jpg
> 
> ... is used as 230V input. This is something that NEVER NEVER NEVER 
> should be done.
> 1.) The solder connections on the XLR socket are not isolated, e.g. with 
> heat shrink tube. If you mount a module, in the rack you are not secured 
> against high voltage.
> 2.) XLR-Sockets are not intended for AC voltages in this range (e.g. 
> Neutrik tells the rated voltage of 50 V AC !!!).
> 3.) Imagine an cable with XLR female connector laying around in your 
> studio, and you do not see the other end. You connect it with a 
> microphone or any other audiooutput and BANGGGG.... damn, that wasn't 
> the microphone cable, but the 230V AC for the modular system (if you 
> still can recognize this - you also might be dead in this moment already!)
> 
> This is nearly the worst kind of doing this. Sorry to say, but I'd like 
> to suggest, that these pictures have to be removed from the photo 
> section. Noone should take these as examples. Dieter?
> 
> Florian
>

Dear Florian,

Thanks for raising the alarm when you spotted something dangerous, or thought so at least. 
Better safe than sorry!
All I did was following the suggestion to insert a connector (e.g. XLR) as shown on page 2 of the manual DIY Kit #1 + 2 Installation guide  (Version 2, from May 2008).

Warm regards,

Ton


--- In Doepfer_a100@yahoogroups.com, Florian Anwander <fanwander@...> wrote:

>
> Hello Rich,
> 
> aah! I'm glad, that I stand corrected. I should have seen that there is 
> no transformer...
> 
> Thanks and sorry for the false alarm.
> 
> Florian
> 
> Am 03.08.2011 15:54, schrieb richyho@...:
> > As far as I can see that's carrying 12V from the external 'brick' of a Doepfer DIY kit, not a 240v 'PSU 2'. Not my case, but I have a DIY kit and was considering doing something similar (not XLR though) to allow for disconnection of the power brick.
> >
> > Rich
>

Hello!

I am risking to be called a nitpicker now:

There is a DIY-rack in the photosection uploaded by acakveld. This case 
is constructed in a extremely dangerous way. The XLR-Socket on the right 
side in these pictures....:

http://xa.yimg.com/kq/groups/3183706/sn/483129258/name/first+light.jpg
http://xa.yimg.com/kq/groups/3183706/sn/444387654/name/first+noise.jpg

... is used as 230V input. This is something that NEVER NEVER NEVER 
should be done.
1.) The solder connections on the XLR socket are not isolated, e.g. with 
heat shrink tube. If you mount a module, in the rack you are not secured 
against high voltage.
2.) XLR-Sockets are not intended for AC voltages in this range (e.g. 
Neutrik tells the rated voltage of 50 V AC !!!).
3.) Imagine an cable with XLR female connector laying around in your 
studio, and you do not see the other end. You connect it with a 
microphone or any other audiooutput and BANGGGG.... damn, that wasn't 
the microphone cable, but the 230V AC for the modular system (if you 
still can recognize this - you also might be dead in this moment already!)

This is nearly the worst kind of doing this. Sorry to say, but I'd like 
to suggest, that these pictures have to be removed from the photo 
section. Noone should take these as examples. Dieter?

Florian

> Hello!
>
> I am risking to be called a nitpicker now:
>
> There is a DIY-rack in the photosection uploaded by acakveld. This case
> is constructed in a extremely dangerous way. The XLR-Socket on the right
> side in these pictures....:
>
> http://xa.yimg.com/kq/groups/3183706/sn/483129258/name/first+light.jpg
> http://xa.yimg.com/kq/groups/3183706/sn/444387654/name/first+noise.jpg
>
> ... is used as 230V input. This is something that NEVER NEVER NEVER
> should be done.
> 1.) The solder connections on the XLR socket are not isolated, e.g. with
> heat shrink tube. If you mount a module, in the rack you are not secured
> against high voltage.
> 2.) XLR-Sockets are not intended for AC voltages in this range (e.g.
> Neutrik tells the rated voltage of 50 V AC !!!).
> 3.) Imagine an cable with XLR female connector laying around in your
> studio, and you do not see the other end. You connect it with a
> microphone or any other audiooutput and BANGGGG.... damn, that wasn't
> the microphone cable, but the 230V AC for the modular system (if you
> still can recognize this - you also might be dead in this moment already!)
>
> This is nearly the worst kind of doing this. Sorry to say, but I'd like
> to suggest, that these pictures have to be removed from the photo
> section. Noone should take these as examples. Dieter?
>
> Florian

Florian,

the XLR is used for the 16V AC coming from the encapsulated transformer of
the DIY kit. So it's OK. We pay attention that no dangerous voltages are
accessible  in the DIY kits. That's also why the standard PSU is not used in
the DIY kits. The PSU board you can see in the pics looks a bit like the
standard PSU but it's the DIY PSU and does not include the transformer but a
16V AC input instead of the transformer.

Anyway - thank you for your alertness. In any case electrical safety is
essential !

Best wishes
Dieter Doepfer

Hello Rich,

aah! I'm glad, that I stand corrected. I should have seen that there is 
no transformer...

Thanks and sorry for the false alarm.

Florian

Am 03.08.2011 15:54, schrieb richyho@btopenworld.com:

> As far as I can see that's carrying 12V from the external 'brick' of a Doepfer DIY kit, not a 240v 'PSU 2'. Not my case, but I have a DIY kit and was considering doing something similar (not XLR though) to allow for disconnection of the power brick.
>
> Rich

Hi

XLR mains sockets are available I use them all the time

As I can not see the front of this socket I am unable to tell if it is a mains one or just a standard one

As for your other comments SPOT ON I could not agree more

Live to enjoy your music not to die in the process

Brian




--- On Wed, 8/3/11, Florian Anwander <fanwander@mnet-online.de> wrote:

> From: Florian Anwander <fanwander@mnet-online.de>
> Subject: [Doepfer_a100] extremely dangerous diy-rack construction in the photo section
> To: Doepfer_a100@yahoogroups.com
> Date: Wednesday, August 3, 2011, 2:35 PM
> Hello!
> 
> I am risking to be called a nitpicker now:
> 
> There is a DIY-rack in the photosection uploaded by
> acakveld. This case 
> is constructed in a extremely dangerous way. The XLR-Socket
> on the right 
> side in these pictures....:
> 
> http://xa.yimg.com/kq/groups/3183706/sn/483129258/name/first+light.jpg
> http://xa.yimg.com/kq/groups/3183706/sn/444387654/name/first+noise.jpg
> 
> ... is used as 230V input. This is something that NEVER
> NEVER NEVER 
> should be done.
> 1.) The solder connections on the XLR socket are not
> isolated, e.g. with 
> heat shrink tube. If you mount a module, in the rack you
> are not secured 
> against high voltage.
> 2.) XLR-Sockets are not intended for AC voltages in this
> range (e.g. 
> Neutrik tells the rated voltage of 50 V AC !!!).
> 3.) Imagine an cable with XLR female connector laying
> around in your 
> studio, and you do not see the other end. You connect it
> with a 
> microphone or any other audiooutput and BANGGGG.... damn,
> that wasn't 
> the microphone cable, but the 230V AC for the modular
> system (if you 
> still can recognize this - you also might be dead in this
> moment already!)
> 
> This is nearly the worst kind of doing this. Sorry to say,
> but I'd like 
> to suggest, that these pictures have to be removed from the
> photo 
> section. Noone should take these as examples. Dieter?
> 
> Florian
> 
> 
> ------------------------------------
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> 
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> 
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