It's worth noting that in the post you link to, he says the
intereference was there whether or not the SB was attached to the
wallwart (it only mattered if the wart itself was plugged into the
wall). Therefore the interference was caused by RF waves, which
radiate in all directions from the
Does anybody have any experience regarding the WAF of a Faraday cage?
:-P
--
jeffmeh
jeffmeh's Profile: http://forums.slimdevices.com/member.php?userid=3986
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jeffmeh;162373 Wrote:
Does anybody have any experience regarding the WAF of a Faraday cage?
:-P
I've heard of people building chicken wire or metal screens into the
walls of their houses, although I think it was the result of a disease
different than audiophilia (hypochondria about the health
Doesn't a Faraday cage work the other way round too, so putting the SB
wallwart into a small cage quieten it ?
That has a higher WAF too.
Tom
--
tomsi42
SB3, Rotel RC-1070/RB-1070, dynaBel Exact, Kimber Kable 4TC and Timbre.
tomsi42;162390 Wrote:
Doesn't a Faraday cage work the other way round too, so putting the SB
wallwart into a small cage quieten it ?
Good point - that would work, at least so long as the wire coming out
doesn't mess things up. So now all of us with stock PSUs should wrap
them in copper
opaqueice;162406 Wrote:
Good point - that would work, at least so long as the wire coming out
doesn't mess things up. So now all of us with stock PSUs should wrap
them in copper foil...
EMI tweaks really need to be tested - if you just take a stab in the
dark like that, it's quite possible
seanadams;162206 Wrote:
Just for completeness: I've also suggested that replacing the external
5V feed is silly, because it does not reduce noise at the internal
power rails - those are internally linear-regulated _down_ from the
output of an internal switching _step-up_ supply. Changing the
tomsi42;162390 Wrote:
Doesn't a Faraday cage work the other way round too, so putting the SB
wallwart into a small cage quieten it ?
That has a higher WAF too.
Tom
Or , you could put the Wife in a cage, should make listening more
pleasant:-)
--
tomjtx
http://www.audiocircle.com/circles/index.php?topic=34574.msg307639;topicseen#new
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rajacat
rajacat's Profile: http://forums.slimdevices.com/member.php?userid=4156
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jhm731;161542 Wrote:
Skunk;161498 Wrote:
The http://www.welbornelabs.com/psreghc.htm is also based on the
original Jung design.
I just noticed that the supply mentioned above is now available in a
kit specifically designed for the SB3 for $185. Assembly is
required.
Skunk;161709 Wrote:
I noticed in the archives you mentioned having a couple alwsr boards,
did anything ever come about?
Also in the archives, Seans response to Mike Hansons ALWSR supply was
that the 14V (or 12.5?) internal rail after the display was the place
to try attacking, rather than
seanadams;162206 Wrote:
...Just for completeness: I've also suggested that replacing the
external 5V feed is silly, because it does not reduce noise at the
internal power rails - those are internally linear-regulated _down_
from the output of an internal switching _step-up_ supply. Changing
jhm731;161542 Wrote:
The http://www.welbornelabs.com/psreghc.htm is also based on the
original Jung design.
PS- the $30. salvaged power supply is a much better unit than the
Power One.
The one you pointed out is 9A on the 5v output, is that why it's
better?
Re: the welborne ps, it
Robin Bowes;161558 Wrote:
I'm not sure if he's still doing them but, ALW used to sell super-reg
boards.
http://www.alw.audio.dsl.pipex.com/index.htm
R.
I noticed in the archives you mentioned having a couple alwsr boards,
did anything ever come about?
Also in the archives, Seans
Skunk wrote:
Robin Bowes;161558 Wrote:
I'm not sure if he's still doing them but, ALW used to sell super-reg
boards.
http://www.alw.audio.dsl.pipex.com/index.htm
R.
I noticed in the archives you mentioned having a couple alwsr boards,
did anything ever come about?
Nope, I never made
Skunk;161703 Wrote:
The one you pointed out is 9A on the 5v output, is that why it's better?
Re: the welborne ps, it doesn't have any opamps does it? How can it be
based on the Jung design? http://waltjung.org/PDFs/Improved_PN_Regs.pdf
You'll have to ask Wellborne why they recommend the
jhm731;161818 Wrote:
Do you have the sensor leads connected at the SB end of the power
cable?
No, because I cut my DC lead off a router's wall wart in a fit of
instant gratification (though I did keep the SB wall wart intact which
I would recommend for comparison purposes).
--
Skunk
Would something like this work?
http://www.goldmine-elec-products.com/prodinfo.asp?number=G12705
pete
--
widman
widman's Profile: http://forums.slimdevices.com/member.php?userid=8695
View this thread:
widman;161455 Wrote:
Would something like this work?
http://www.goldmine-elec-products.com/prodinfo.asp?number=G12705
pete
No, this is a switching power supply, like the one supplied with the
SB. You're looking for a linear supply, like this one:
MUCHO;161361 Wrote:
I'd like to try one out but I don't want to spend $100 or more on a
linear PS.
I would spend $30 or so just for the heck of it.
Anyone found one out there cheap yet?
Thanks!
If you can solder on some leads for the AC and the 5VDC connections,
here's a great
Re-reading that linked thread above, I noted in around page 6 that I'd
like to figure out how to do the Walt Jung/ALWSR power supply mods.
Seeing how the mods made it into the transporter that seems like the
way to go, if you're going to bother making something.
My question is why don't some
Skunk;161393 Wrote:
I saw a lot of 10 Power One HB5-3/OVP-A linear supplies on ebay for $49
+ 10 shipping. Or you could get one new one for that much.
They're not plug and play, but well worth the effort of wiring,
enclosing, and fusing the open frame unit.
Yea - they seem to have a lot
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