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Re: DIY battery powered NAIM power supplies anyone ?

Posted: Fri Jul 14, 2017 12:03 am
by james
I found this ..

https://www.teddypardo.com/powersup ... .html

This is an ad for a clone of the NAIM Supercap ..

The relevant bit is ..


"...
Specifications


Power output: 13x24V, 2x13V

Mains Supply: 110-120V or 220-240V

Dimensions: 2x 24x16x6 cm

TeddySuperCap - Replaces Naim SuperCap
..."


So you need thirteen 24V (regulated) outputs.

Re: DIY battery powered NAIM power supplies anyone ?

Posted: Fri Jul 14, 2017 12:50 am
by nige2000
that looks more like 13 X 24v regulators that rather unusual
what are they all for?
likely a method to stop the spread of ps noise,

that connector cable sure is pricey

Re: DIY battery powered NAIM power supplies anyone ?

Posted: Fri Jul 14, 2017 2:49 pm
by Sloop John B
nige2000 wrote: Thu Jul 13, 2017 12:17 am
Sloop John B wrote: Wed Jul 12, 2017 11:57 pm Do you honestly think you are going to come up with anything better than a Naim, Avondale or Terry Pardo power supply?

If it's just for fun we'll go ahead,but otherwise this is a well worn path.


.sjb
The lifepo4 supply would tear all of the above a new arsehole
End off

I'm not into mediocre

What exactly do you think is in these power supply units?
Besides 400% markup
Ordinary stuff in a nice box
Well if you can come up with one at 25% of the price of a TP supply that sounds better, I'll take my hat off to you sir.

.sjb

Re: DIY battery powered NAIM power supplies anyone ?

Posted: Sat Jul 15, 2017 10:20 am
by tony
Maybe eating the hat would be more appropriate John at 25% of the price. Doffing if better and costing similar.?

Re: DIY battery powered NAIM power supplies anyone ?

Posted: Sat Jul 15, 2017 10:24 am
by nige2000
Sloop John B wrote: Fri Jul 14, 2017 2:49 pm
nige2000 wrote: Thu Jul 13, 2017 12:17 am
Sloop John B wrote: Wed Jul 12, 2017 11:57 pm Do you honestly think you are going to come up with anything better than a Naim, Avondale or Terry Pardo power supply?

If it's just for fun we'll go ahead,but otherwise this is a well worn path.


.sjb
The lifepo4 supply would tear all of the above a new arsehole
End off

I'm not into mediocre

What exactly do you think is in these power supply units?
Besides 400% markup
Ordinary stuff in a nice box
Well if you can come up with one at 25% of the price of a TP supply that sounds better, I'll take my hat off to you sir.

.sjb
nope wont be cheap, no free lunch here the parts could run into bout 800e, plus your time

naim seem to have large caps on the trafo secondaries feeding a bunch of regulators most of the the psu noise will collect there

in the lifepo4 supply it has very low impedance circa <10 mohm an insane amount of reserved power providing stability any noise imposed on it will be like throwing buns at a bear, your not gonna have any effect,,,,,,
severe overkill but it works :)

my guess a lot of the methodology is to have another product to sell while deterring counterfeits

plug info

http://www.acoustica.org.uk/t/naim/powersupplies.html

Re: DIY battery powered NAIM power supplies anyone ?

Posted: Sat Jul 15, 2017 10:27 am
by nige2000
tony wrote: Sat Jul 15, 2017 10:20 am Maybe eating the hat would be more appropriate John at 25% of the price. Doffing if better and costing similar.?
yet again wont be cheap, especially including ur labour

Re: DIY battery powered NAIM power supplies anyone ?

Posted: Sat Jul 15, 2017 2:04 pm
by tony
nige2000 wrote: Sat Jul 15, 2017 10:27 am
tony wrote: Sat Jul 15, 2017 10:20 am Maybe eating the hat would be more appropriate John at 25% of the price. Doffing if better and costing similar.?
yet again wont be cheap, especially including ur labour
What have Naim power supplies got to do with me? I prefer the other two box merchants Cyrus -)

Re: DIY battery powered NAIM power supplies anyone ?

Posted: Sat Jul 15, 2017 2:24 pm
by frd1996
Maybe this is a bit off topic but here are some nice pictures of replacements for NAIM PSUs:
http://nodecorporation.co.uk/index.htm

Re: DIY battery powered NAIM power supplies anyone ?

Posted: Sat Jul 15, 2017 9:50 pm
by nige2000
frd1996 wrote: Sat Jul 15, 2017 2:24 pm Maybe this is a bit off topic but here are some nice pictures of replacements for NAIM PSUs:
http://nodecorporation.co.uk/index.htm
i really doubt anyone heres gonna actually build a replacement for naim ps

Re: DIY battery powered NAIM power supplies anyone ?

Posted: Sat Jul 29, 2017 11:34 pm
by james
Thanks for all the comments/suggestions .. I looked at the various websites and I can see its a lot harder than what I could do.

James