Aleph 1.7 : power supply enclosure

ndhennin · 22nd July 2006, 02:07 PM

I am currently achieving the enclosures for my 1.7.
I am making a chassis for the preamp and one for the power supply.
My question is : what do I have to put in the power supply enclosure : toroid, rectifier and capacitors or what other combination is the most suitable ?

wayne325 · 22nd July 2006, 10:43 PM

I'm just finishing a 1.7 clone.
I put the regulated supply and the first C of the C-R-C filter in the
power supply chassis. The reason for that is the umbilical will be exposed
to noise in the environment and I wanted it to be filtered by the RC.
I also put a ferrite filter at the amp chassis end of the umbilical to cut
down on the RF noise between the chassis.

While we're on this, I wanted to find some metallic sheathing
material for my umbilical but I never did find anything. I wanted the
umbilical to be beasically immune to RF noise outside the chassis.

harryeng · 23rd July 2006, 09:07 PM

Quote:

Originally posted by wayne325
While we're on this, I wanted to find some metallic sheathing
material for my umbilical but I never did find anything. I wanted the
umbilical to be beasically immune to RF noise outside the chassis.

Hi Wayne,

Check this out:
magnetic shielding for cable

On the end of the URL you can find a braided sleeving, that fits over your prefered cable.

I did not use it myself, but had great results using the MuMetal in my ONO.

Greetings,
Harry

wayne325 · 25th July 2006, 03:34 AM

Thanks Harry I'll look into it.

W.

22nd July 2006, 02:07 PM	#1
ndhennin diyAudio Member Join Date: Apr 2002 Location: Lille (France)	Aleph 1.7 : power supply enclosure I am currently achieving the enclosures for my 1.7. I am making a chassis for the preamp and one for the power supply. My question is : what do I have to put in the power supply enclosure : toroid, rectifier and capacitors or what other combination is the most suitable ?

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22nd July 2006, 10:43 PM	#2
wayne325 diyAudio Member Join Date: Jun 2005 Location: Dallas, Texas	I'm just finishing a 1.7 clone. I put the regulated supply and the first C of the C-R-C filter in the power supply chassis. The reason for that is the umbilical will be exposed to noise in the environment and I wanted it to be filtered by the RC. I also put a ferrite filter at the amp chassis end of the umbilical to cut down on the RF noise between the chassis. While we're on this, I wanted to find some metallic sheathing material for my umbilical but I never did find anything. I wanted the umbilical to be beasically immune to RF noise outside the chassis.

25th July 2006, 03:34 AM	#4
wayne325 diyAudio Member Join Date: Jun 2005 Location: Dallas, Texas	Thanks Harry I'll look into it. W.