How to make a power conditioner

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#42
I think Felix PCB's are no longer made, but if someone wanted to make them up again, it's worth it.

I'm not contributing anymore to design in this topic, but I do want everyone to get accomplish the pleasures of power conditioning.

One note, if possible put the Felix close to your conditioned piece. It's convient to box them together and away, but the closer the better. Part of that is to reduce the RF the secondary capacitor sides have to load down as there is a limit on attenuation.

Enjoy!
 
#44
felix1.jpg


PICT7487.jpg


An externally hosted image should be here but it was not working when we last tested it.
 
#46
Nico Ras said:
Typical EMI filter with common mode suppression? What is so great about this.
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it will work well when placed on your PC etc

in other words, use it for connecting all other units but your hifi 😉

I have done this, but unfortuinetely burned the inductor
right now I only have mains wired with a few turns around a toroid core

clock radios etc can make noise too

and all the wireless stuff 😡
 
#47
Nico Ras said:
Typical EMI filter with common mode suppression? What is so great about this.
Click to expand...
It was a (430 post) hobby group project (often having very little electric/electronic knowledge). Sometimes they would use rather large capacitors (some with questionable safety ratings) and small chokes.

Note that the thread run for a period of about 6 years. The questionable components arrived late in that time span.
 
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#48
I think one needs to understand the purpose of each element and what will it do in the context of the application. In the case of the transformer, it has two functions, that of being a transformer as well as being an inductor.

These filters are not really usefull for audible frequency stuff simply because the components would become too big and expensive. If you hear improvements then I would argue it is purely placebo, because you cannot hear in the MHz range.

These filters are to stop rubbish from your equipment interfering with your pacemaker or the switch-mode power supply in your PC buzzing in your hearing aid or getting the wrong numbers dialed on your mobile phone. Exaggerations but get the drift?

If these filters and line conditioners where to block rubbish in the low frequency region you are looking at inductors the size of power transformers, etc. Nothing stops you designing a high order 100 Hz filter that can pass several amps to clean up your supply and you will hear the difference with and without it.
 
#49
You hear the effect of inaudible frequencies, not the frequencies themselves.

I have no idea how you think digital and switching devices that do operatre in the RF range, wouldn't benefit.

Fact is it's your thoery (conflicting with books like Electro Magnetic Compubility), vs every review on a power conditioner, and dozens of people that built Felix conditioners. Thousands of people, and reputed engineers vs. your first thought on the subject.... Hmmm

I can tell you that good filtration into the audio frequency is better, as I make them, but the others still work.
 
#50
Electro Magnetic Compubility

I haven't seen anything on "Electro Magnetic Compubility" :scratch: however every product that is powered from mains need to comply with international regulations.

For those interested in conducted interference, attached is a paper that explains it pretty nicely.

Destroyer OS, check your spelling of Electromagnetic Compatibility. If it is a book as you say, then surely the title was spelled correctly. :yes:
 

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#51
Destroyer OS. said:
You hear the effect of inaudible frequencies, not the frequencies themselves.
Click to expand...

I will take your word for it.:hphones:

I have no idea how you think digital and switching devices that do operatre in the RF range, wouldn't benefit.
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What exactly are you talking about? What are you taking for your condition do you drink your bath water?:whacko:

Fact is it's your thoery (conflicting with books like Electro Magnetic Compubility), vs every review on a power conditioner, and dozens of people that built Felix conditioners. Thousands of people, and reputed engineers vs. your first thought on the subject.... Hmmm
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My first though on the subject was that you should understand - which clearly you nor your reputed engineers and thousands of people you refer to don't. .... Hmmmm :rofl::rofl:

I can tell you that good filtration into the audio frequency is better, as I make them, but the others still work.
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I hope you do not earn a living from making them, while others still work. I am willing to bet you have no idea how what you are making works! 🙄
 
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#53
Destroyer OS. said:
You hear the effect of inaudible frequencies, not the frequencies themselves..........
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When I have my mobile phone under my car radio, I hear the phone "talking" to the transmitter as bleeps and buzzes and other interference.

When I lay my mobile on or next to my stereo, I never hear any of the mobile to transmitter "chatter".

That "talking" and chatter must be in the 100s of MHz, but it is audible on my car radio. But not audible on my FM radio, nor in any of my home gear, except the cheap computer speakers (utter crap).
 
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