In article ,
Eeyore wrote:


"Dave Plowman (News)" wrote:

You are familiar with the regs in every country, are you?

Most countries use IEC regs.
http://en.wikipedia.org/wiki/Interna...cal_Commission

Broad specs only. In the UK it's the IEE regs that have to be followed for
domestic wiring.

Except in N America (UL CSA), where they are effectively being forced to
change their rules to comply with IEC or face being shut out of world
trade.

http://en.wikipedia.org/wiki/Ce_mark
http://en.wikipedia.org/wiki/Ccc_mark The OZ (probably also used in NZ)
C-tick Mark hasn't yet made Wikipedia properly

http://en.wikipedia.org/wiki/Power_s...uter)#External

Common certification marks for safety are the UL mark, GS mark, TÜV,
NEMKO, SEMKO, DEMKO, FIMKO, CCC, CSA, VDE, GOST R and BSMI. Common
certificate marks for EMI/RFI are the CE mark, FCC and C-tick. The CE
mark is required for power supplies sold in Europe and India.

Needs editing since not entirely accurate.

All these apply to goods for sale. Not for home construction. Which is
just as well as type approval can be costly. However, things like the CE
mark are often self assessed rather than awarded after independent testing.

--
*Give me ambiguity or give me something else.

Dave Plowman London SW
To e-mail, change noise into sound.

"Dave Plowman (News)" wrote:

Eeyore wrote:
"Dave Plowman (News)" wrote:

You are familiar with the regs in every country, are you?

Most countries use IEC regs.
http://en.wikipedia.org/wiki/Interna...cal_Commission

Broad specs only. In the UK it's the IEE regs that have to be followed for
domestic wiring.

That's NOT what we were talking about in any shape or form aside from the
probability of Anton's house incinerating itself.

The IEE has NOTHING to do with product construction.

Graham

Anton Gÿsen wrote:

Hi all,

I am wishing to build a replacement transformer for my Cambridge Audio
DacMagic DAC (the new one that's just come out). I am unhappy with the
original PSU because it is inefficient and doesn't have a physical
on/off switch so it's constantly drawing a current unless you unplug it,
and I like to save evergy where I can.

So I was wondering whether I could build a new transformer for it based
around a toroidal core transformer, in the hope that it will reduce
power consumption and, if I'm lucky, make the DAC sound better.

And how exactly would it make the DAC sound better ? Details please ?

Do you think you know more about high-end audio electronics design than
Cambridge Audio ?

If you don't like it, sell it and buy something else FFS !

Graham (pro-audio design engineer for 37 years)

Eeyore wrote:

Anton Gÿsen wrote:

Hi all,

I am wishing to build a replacement transformer for my Cambridge Audio
DacMagic DAC (the new one that's just come out). I am unhappy with the
original PSU because it is inefficient and doesn't have a physical
on/off switch so it's constantly drawing a current unless you unplug it,
and I like to save evergy where I can.

So I was wondering whether I could build a new transformer for it based
around a toroidal core transformer, in the hope that it will reduce
power consumption and, if I'm lucky, make the DAC sound better.

And how exactly would it make the DAC sound better ? Details please ?

I don't know, nor was I claiming to.

Do you think you know more about high-end audio electronics design than
Cambridge Audio ?

Do you think that Cambridge Audio put a lot of thought into the power
supply module when they designed the DAC? It's ben outsourced, it's got
a different manufacturer's name and logo on it.

If you don't like it, sell it and buy something else FFS !

Yawn...

Graham (pro-audio design engineer for 37 years)

Yes I've noticed from lurking on this group for a while that you like to
make your credentials known on a regular basis.

Anton Gÿsen wrote:

Eeyore wrote:

And how exactly would it make the DAC sound better ? Details please ?

I don't know

Says it all !

Graham

Anton Gÿsen wrote:

Eeyore wrote:

Graham (pro-audio design engineer for 37 years)

Yes I've noticed from lurking on this group for a while that you like to
make your credentials known on a regular basis.

Credentials you certainly don't have.

Graham

Anton Gÿsen wrote:

doesn't have a physical
on/off switch so it's constantly drawing a current unless you unplug it,
and I like to save evergy where I can.

I've got a Pioneer 'audio digital timer' in my Hifi stack. It's original
use is switching the mains supply to my cassette, tuner and minidisc
decks for autostart unattended recording. However, I've also added the
power supply for my turntable, it's preamp and the dac-in-the-box, all
wall warts.

So, to turn on all of those - i just hit the timer over ride button.

--
Adrian C

Adrian C wrote:

Anton Gÿsen wrote:

doesn't have a physical
on/off switch so it's constantly drawing a current unless you unplug it,
and I like to save evergy where I can.

I've got a Pioneer 'audio digital timer' in my Hifi stack.

Jolly good for you. You could use a clockwork one too.

MORON !

Graham

Eeyore wrote:
Jolly good for you. You could use a clockwork one too.

MORON !


Oh dear, is this Phil Addison having taken over Graham's body?

:-)

--
MORON

Adrian C wrote:
Anton Gÿsen wrote:

doesn't have a physical
on/off switch so it's constantly drawing a current unless you unplug it,
and I like to save evergy where I can.

I've got a Pioneer 'audio digital timer' in my Hifi stack. It's original
use is switching the mains supply to my cassette, tuner and minidisc
decks for autostart unattended recording. However, I've also added the
power supply for my turntable, it's preamp and the dac-in-the-box, all
wall warts.

So, to turn on all of those - i just hit the timer over ride button.

I want to be able to switch things on and off independently, i.e. I
don't want my DAC on when my FM tuner is on.