I once heard a talk from Bill Whitlock of Jensen about that EMI-XLR, it has circular capacitive elements to the shell as well as some inline RF beads. Maybe I can find that drawing back.
On Cinch: so maybe the brand name just became a product name then. Like in Belgium where any camera is called a Kodak. I think this is called an 'onomatopeia' or something....
Edit no ono-etc is wrong. Sorry!
Edit2: its a 'brandnomer'. Like Kleenex as a name for any brand facial tissue.
Jan Didden
On Cinch: so maybe the brand name just became a product name then. Like in Belgium where any camera is called a Kodak. I think this is called an 'onomatopeia' or something....
Edit no ono-etc is wrong. Sorry!
Edit2: its a 'brandnomer'. Like Kleenex as a name for any brand facial tissue.
Jan Didden
scott wurcer said:
A few microvolts times 60-80 dB is a few millivolts and its the transient that matters.
janneman said:
To be pedantic in English (which we are good at!) it is when a brand name replaces a generic name in common usage.
But I am trembling at criticising one whose English is so good 😱
cliffforrest said:
Ah I see. A brand name that has colloquially become a generic term for a product or service. 😀
Jan Didden
Does anyone here have opinions about differences in low noise resistors? 10 ohms or less is my basic question.
john curl said:
As much as you wish, changing the thread won't change the reality.
http://www.diyaudio.com/forums/showthread.php?postid=1836887#post1836887
Please don't harass me, SYN08. I need to know as much as possible, because I usually stop at 10 ohms and don't want to use Dale.
john curl said:
Ok, I may have a few suggestions, but you have to tell me your minimum price tag.
In all honesty, I think that your 'resolution' in this matter is tainted, and I would call for other audiophiles to give me input if they have something to contribute.
Bob Crump reduced it to Vishay foil below 1K and Caddock thick film above. I don't have the patience to duplicate his efforts.
For the low values the quality of the terminations is very important. And copper can degrade the temp co if its used in the leads and represents a significant part of the total resistance. Use 4 wire Kelvin connected resistors if you can.
I can measure excess noise down to 1 Ohm and distortion down to .! Ohm for what its worth.
For the low values the quality of the terminations is very important. And copper can degrade the temp co if its used in the leads and represents a significant part of the total resistance. Use 4 wire Kelvin connected resistors if you can.
I can measure excess noise down to 1 Ohm and distortion down to .! Ohm for what its worth.
I'm using naked "Vishay" in similar position in my phono preamp which uses 4 pairs of 2SK146 and 2SJ72 at input. Cartridge is Lyra Parnassus DCt.
I like the Caddock TF-020 a lot too, the Vishay S102 and Caddock MK-132 less well.
I like the Caddock TF-020 a lot too, the Vishay S102 and Caddock MK-132 less well.
As usual round and round we go, worry about ppb anamolies in device characteristics on one hand and then call the LAMM best sound of show with all the distortion you could ever want. Where does this all go?
Please don't be childish: Just because I knew more circuit design than most here, 40 years ago, doesn't mean that this design is 40 years old. All we had to work with in jfets, 40 years ago, was the 2N4416 or the 2N3819, at my company.
However, I could achieve 0.4nV/rt Hz or less, more than 40 years ago, with the 2n4403, or even better the 2n4405, and I put it in a report to the Ampex Audio Department, more than 40 years ago. Would you like to see it sometime?
That is, unfortunately, why I do get tried of 'proving' the same principles, over and over, on this and other threads.
However, I could achieve 0.4nV/rt Hz or less, more than 40 years ago, with the 2n4403, or even better the 2n4405, and I put it in a report to the Ampex Audio Department, more than 40 years ago. Would you like to see it sometime?
That is, unfortunately, why I do get tried of 'proving' the same principles, over and over, on this and other threads.
john curl said:
Why no, thank you
I can do today under 0.2nV/rtHz with modern BJTs. Stay tuned!
This is really sad.
The LAMM experience was something that may happen to me once a year or so.
It is a reaffirmation that we are on the right track in audio, and that everything today is not second rate elevator music. It attests that my associates and I can still hear the differences, and pronounce EVEN A COMPETITOR'S DESIGN, as a moving experience.
Here I walk into a room, knowing nothing of what I am going to hear, and I become entranced in Jazz music made in the 1950's, from a CD at that! My part time business partner was delighted as well, and said that he could listen all day. What does he use at home? A CTC BLOWTORCH, a Parasound power amp and K-horns. Yet this system at a hotel room at CES was really that special.
OF COURSE, I asked what was creating this wonderful sound? I don't approve of the big bucks that he charges, BUT I also know that custom designs cost time and energy to make.
Would I think the design should cost $30,000 and not $130,000? Yes, but that is not my choice to make. I do wish SY could have heard it, or will hear something like it. He might be able to explain it better, to those without any exposure to really high quality sound.
Still, I struggle with AD and other IC op amps and hope to make something acceptable from them. Even though the designers laugh at me and sneer at subjectively superior efforts to reproduce audio signals.
The LAMM experience was something that may happen to me once a year or so.
It is a reaffirmation that we are on the right track in audio, and that everything today is not second rate elevator music. It attests that my associates and I can still hear the differences, and pronounce EVEN A COMPETITOR'S DESIGN, as a moving experience.
Here I walk into a room, knowing nothing of what I am going to hear, and I become entranced in Jazz music made in the 1950's, from a CD at that! My part time business partner was delighted as well, and said that he could listen all day. What does he use at home? A CTC BLOWTORCH, a Parasound power amp and K-horns. Yet this system at a hotel room at CES was really that special.
OF COURSE, I asked what was creating this wonderful sound? I don't approve of the big bucks that he charges, BUT I also know that custom designs cost time and energy to make.
Would I think the design should cost $30,000 and not $130,000? Yes, but that is not my choice to make. I do wish SY could have heard it, or will hear something like it. He might be able to explain it better, to those without any exposure to really high quality sound.
Still, I struggle with AD and other IC op amps and hope to make something acceptable from them. Even though the designers laugh at me and sneer at subjectively superior efforts to reproduce audio signals.
john curl said:
Really? If you think the route to 0.2V/rtHz with BJTs is paralleling devices only, you are dead wrong.
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