I prefer 2 supply systems because they are more simple, but the concept is 'OK'.
I have, in the past, made tracking power supplies for power amps, but I would not do it again, today. Too complex, so complex, that HK decided not to use it.
I have, in the past, made tracking power supplies for power amps, but I would not do it again, today. Too complex, so complex, that HK decided not to use it.
IMO grounding and ground wiring is grossly underestimated. Different ground wiring schemes make a great difference, IMO greater than passives.
PMA said:
I think the best circuits can be ruined by improper ground wiring.
I would like to see this topic developed.
Grounding
On this topic, can we read people's experience of the use of a resistor between high current ground ( typically output stage currents correctly controlled to avoid large loops) and low signal ground ( mainly input stage decoupling). I mean impact on the quality of sound
What is the influence on sound quality of the use of a ground loop breaker ( 2 diodes in // + a resistor) to break ground loops created by safety requirements.
Did people use a clean ground which is an equipotential where no signal current is flowing and where all the shields and input filtering is connected. This clean ground is connected to the chassis and protective earth after the ground loop breaking circuit
I am interested to know if these techniques have a strong or weak influence on the sound quality.
JPV
On this topic, can we read people's experience of the use of a resistor between high current ground ( typically output stage currents correctly controlled to avoid large loops) and low signal ground ( mainly input stage decoupling). I mean impact on the quality of sound
What is the influence on sound quality of the use of a ground loop breaker ( 2 diodes in // + a resistor) to break ground loops created by safety requirements.
Did people use a clean ground which is an equipotential where no signal current is flowing and where all the shields and input filtering is connected. This clean ground is connected to the chassis and protective earth after the ground loop breaking circuit
I am interested to know if these techniques have a strong or weak influence on the sound quality.
JPV
Should one use the same kind of wire for ground as the + & - dc voltage? Any comments from your experiences?
asking questions
Try it yourself,or you will never know
regards
Max Albin
ps It Isn't the wire,Its how It's connected.
Try it yourself,or you will never know
regards
Max Albin
ps It Isn't the wire,Its how It's connected.
Re: asking questions
It’s in fact both the wire and how and where it’s connected that matters.
Cheers
Stinius
albin said:
It’s in fact both the wire and how and where it’s connected that matters.
Cheers
Stinius
The ground issue was previous brought up, and unfortunately misplaced into the wrong section on diyaudio. Electronics & Parts are not about ground theory as far as I can tell.
http://www.diyaudio.com/forums/showthread.php?s=&threadid=134500
Apparently the moderators did not see fit to move it to a more appropriate venue, like this Solid State sub-title. I wish they had, or would still... it has not flourishedfrom a lack of visibility sitting in the wrong place, imho.
The way to handle it if the "tube guys" want to see it is to put a pointer on a sticky in that section...imo. (at least long enough to attract enough of them over...)
Mr. Pass??
_-_-bear
http://www.diyaudio.com/forums/showthread.php?s=&threadid=134500
Apparently the moderators did not see fit to move it to a more appropriate venue, like this Solid State sub-title. I wish they had, or would still... it has not flourishedfrom a lack of visibility sitting in the wrong place, imho.
The way to handle it if the "tube guys" want to see it is to put a pointer on a sticky in that section...imo. (at least long enough to attract enough of them over...)
Mr. Pass??
_-_-bear
Re: Bear
I agree it belongs in the solid state forum, but sadly John started his thread in another forum.
http://www.diyaudio.com/forums/showthread.php?postid=1681462#post1681462
bear said:
albin said:
I agree it belongs in the solid state forum, but sadly John started his thread in another forum.
http://www.diyaudio.com/forums/showthread.php?postid=1681462#post1681462
john curl said:
John
Just be yourself, nothing more nothing less.
Nobody with a sense of understanding has asked you for a schematic or secrets.
Nobody wants you to go away.
Cheers
Stinius
Re: Re: asking questions
Both of you are correct.
Simply put, ground loops are formed when current is flowing in more than one path via the various ground return connections and wirings.
I don't know whether rules for avoiding ground loops can be written down.
Anyhow, it takes common sense, the ability to visualize currents flow and a lot of experience.
Also, as John Curl wrote in this thread – the ground return route is a part of signal route – including the bypass capacitors and all the rest.
albin said:
stinius said:
Both of you are correct.
Simply put, ground loops are formed when current is flowing in more than one path via the various ground return connections and wirings.
I don't know whether rules for avoiding ground loops can be written down.
Anyhow, it takes common sense, the ability to visualize currents flow and a lot of experience.
Also, as John Curl wrote in this thread – the ground return route is a part of signal route – including the bypass capacitors and all the rest.
stinius said:
As far as I can tell (including personal phone conversations), John (John Curl) is and have been himself all along this thread from day 1 he posted here and all along this thread. (For which I highly respect him, first and foremost as a human being).
However, JC being himself didn't prevent others, including you, stinius, from attacking, mocking and ridiculing him.
So, stinius, please, do yourself and all of us here a favor – take a stand and stand firm on your stand.
Do you perceive JC as a human being?
Do you perceive JC as an accomplished electronics engineer and audio designer?
Do you respect JC?
– If yes, how does it manifest?
– If no, what are you after in this thread?
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