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In Reply to: RE: STEALTHCAP Film Capacitors (by TRT) posted by mrplatte on September 10, 2015 at 23:05:40
Funny...
http://www.trt-wonder.com/page20.html
Follow Ups:
Except that there he would run into overwhelmingly engineering types who actually understand how stuff works, have little patience with snake oil and fairy piss, and would tell him as much.
aa
"Once this was all Black Plasma and Imagination" -Michael McClure
...posting the same thing at entirely different websites, i.e., posting the same thing in AA and AK and Audio Circle and...
Edits: 09/12/15
"As you know, when you stand at one end of a gymnasium and your friend stands at the other end, the two of you can hardly understand what the other one is saying. Why? The multiple reflections from the gym's boundaries garble the sonic message, so it's a mess after the long trip along the gym's length. The same reflection problem happens in all other capacitors. The plate in a typical capacitor is actually as long as a gymnasium...."
Sound travels through air at the speed of sound but an electromagnetic wave travels through the conductor in a cap at very near the speed of light.
Tre'
Have Fun and Enjoy the Music
"Still Working the Problem"
"The plate in a typical capacitor is actually as long as a gymnasium...."
That's one way to build capacitors but not the only one and is suitable for some applications especially where cost is a big issue. The better scheme for wide bandwith applications is the "extended foil" design where the foils are wider than the dielectric and stick out of either end, after the cap is rolled up. One side on each end. The endcaps are then munched down on the protruding foils and final wraps insulate it and provide mechanical strength.
The net effect is that every layer is directly connected to it's lead providing low ESR and inductance.
Successful analog engineers know their passives...
Rick
Are you serious?
This is a problem to you?
Seems perfectly fine to me.
He should know getting an answer about such a thing here is unlikely since this is rapidly becoming a very ... Oh, well, I will stop there.
The rules state that multiple posts on different forums are subject to fines or imprisonment. In other words, don't do it, please.
Just because you didn't know about it, doesn't mean it's a secret.
I've always taken that "rule" to apply to the Audio Asylum only. Since DIY Audio is not among the Audio Asylum forums (or fora), what's the problem? And since DIY Audio and Tweaks have very different points of view, double posting on these two in particular might benefit the OP in different ways.Having done my mild ranting, my bias about the latest TRT capacitor line could be summarized in one word: "marketing". Every few years, they introduce a new line of "greatest ever" capacitors, which are usually metallized polypropylene film types built in a similar fashion but in a new color and with a new name for the new line. We've had Wondercaps, followed by Infinicaps, followed by Dynamicaps, now Stealth. Nothing wrong with that, really. Infinicaps sounded good but were very fragile; Dynamicaps are said to sound very good.
Edits: 09/11/15
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