[sdiy] English to Dutch (powersupply/plug?) conversion ?

[Theo]

?? Dutch power uses a shutter (aardlek schakelaar in Dutch) as well,
but the ground connection will never set it off when the system is ok.

Anyway,
Mango, you want to use a 2 pin plug.
Give it some thought.
You can insert this plug in both ways,
so there is no difference between the pins.

It could be a good idea to mount a new fuse inside you synth.
You don't like to operate without fuse, if anything goes wrong.
Inside there are different ways of how things can be hooked up.
Just insert the fuse between one lead of the power line and where ever it
goes to.

To take away your worries about the difference in mains voltage, a short
explanation.
You say you are a very newbie, so I simplify a bit.

In side your synth a transformer brings the mains voltage back
to something like 20V (could also be 24V or 12V or whatever)
So in case of  20V the difference between 230V and 220V becomes the
difference between 20V and 19V.
On top of that a device called the power regulator changes this 20V AC in to
something like +15V and -15V DC.
This regulator doesn't care much about its input voltage,
usually everything between 3V and 10V above the output voltage is OK.

Hope this helps,

Theo



From: THOMAS, Mervyn <mervyn.thomas at astrium-space.com>

> Brown = live
> Blue = neutral (live return)
> Green/Yellow = earth - normally connected to the 3rd (longer) pin. This
pin
> is longer because UK socket outlets have a shutter and the earth pin opens
> the shutter on the way in. I think it's to stop kids sticking things like
> fingers/knitting needles/au pairs into the outlet :)
>
> Sounds like you've lost the fused plug. I just hope the power supply is
> protected internally with a fuse.
>
> Merv Thomas
> UNIX CAE SysAdmin - Portsmouth
> *Email: mervyn.thomas at astrium-space.com
> *Tel.: +(0)23 9270 5394
>  * Fax.: +(0)23 9270 8663
>
>
>
> -----Original Message-----
> From: mango [mailto:j.kolling at chello.nl]
> Sent: 16 October 2001 11:59:AM
> To: synth-diy at dropmix.xs4all.nl
> Subject: [sdiy] English to Dutch (powersupply/plug?) conversion ?
>
>
> Hi all,
>
> I'm getting a synth with an English 3-pronged powerplug
> and would like to modify it to a 2-Pronged Dutch powerplug.
> The synth itself wants 230V 50Hz and we have 220V 50Hz here, but i've
> been assured that is okay. (true?)
>
> Now here's my other question:
> I've opened the English plug with a screwdriver and saw that inside it
> the left prong was connected with a blue wire, the right prong was
> connected with a brown wire,
> the 3rd prong that is on top doesn't seem to be connected at all, and
> then there is a fuse in it that is labeled '3 Amp'.
> I have been TOLD by the seller that i would need to get a Dutch plug
> (which has 2 prongs) and then connect one wire to one prong and the
> other to another prong, and it doesn't even matter which wire is
> connected to which prong... because, he said, "it's alternating current
> anyway".
>
> Does this all sound right ? I am *very* newbie and don't want to fry the
> synth, and i *definately* don't want to fry myself!
>
> Btw, what about the fuse ?
> And does it really not matter how the cables are connected ?
> And what about the ground pin that is on the English plug ? Don't we
> have a ground here ? etc.
>
> Thanks very much for the help you can give me !
>
> Joel
>
> P.S. the powercable itself is hardwired i believe they call it to
> somewhere inside the synth, so it's not some model you can just buy an
> entire new cable for and plug it into some socket on the back of the
> synth.
>
>
> ...
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