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Old 15th November 2002, 02:00 PM   #11
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I had an experiment with WIMA, Hovland, Kimber, Icel, and
ERO at the output coupling for my 12AU7 SRPP line stage.
I had the feeling similar as putting on different fashionable T-shirts.

JH
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Old 15th November 2002, 02:07 PM   #12
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Default JH FASHIONWEAR

Hi,

And what is the fashion of the season?

Ciao,
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Old 15th November 2002, 02:13 PM   #13
tiroth is offline tiroth  United States
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Quote:
Originally posted by jh6you
I had the feeling similar as putting on different fashionable T-shirts.
JH
Hehe...I like that. ^_^
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Old 30th November 2002, 02:16 AM   #14
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In case you plan to use the very high quality tinfoil polypropylene caps (you said Hovland), also consider Audyn tinfoil (AUDYN-KP) or SCR tinfoil. I would personnally stay away from AEON caps(SCR??), they have shown to be not well made in my assays

Do you have any surplus electronic stores around where you can get some cheap caps to experiment?
Philipp
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Old 30th November 2002, 07:33 AM   #15
Electrons are yellow and more is better!
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Quote:
Originally posted by peranders
I have a Electronic Concept cap in my hand! It feels as good as it is.
http://www.eci-capacitors.com/
I wonder why some brands have repution of "audiophileness" and some other don't. I suggest strongly that you take a look at Electronic Concept Caps. The advantage is heavy duty performance. Beware of the price though!
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Old 30th November 2002, 07:35 AM   #16
Electrons are yellow and more is better!
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Why is tinfoil good at all? High resistance, in fact nearly 10 times higher than copper. Isn't low resistance the main goal? Aluminium, copper, silver? Isn't silver the best metal?
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Old 30th November 2002, 08:35 AM   #17
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Default why tinfoil

Don´t expect a perfect answer.

Gladly I can give a technical answer.

In the German magazine "Hobby-Hifi" there was a strange test- measuring vibration on the cap. Vibration that was introduced by the forces of the signal, not viceversa.

It sure is doublefolded, mean the other way around it would be interesting and probably the same.

The results were documented and the caps showing the most frequency-linear vibration behaviour were
!! the tinfoil !! and the !!paper in oil!!

reasons must be tinfoil has a much higher inertia an density than usual metal films and so on

Nothing was said about that. Several audiophile caps were measured, clear cut diagrams.

The resonance pattern in those diagrams resembled back then brilliantly impressions I had gathered using the tested caps ,read the way they changed the systems tone...



You can make up your own thoughts on this
kind regards
Philipp
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Old 30th November 2002, 08:53 AM   #18
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Default why tinfoil- signalintroduced vibration spectra in capacitors

The diagram I have posted above shows a tinfoil type on the left, and a special non-inductive wound cap by the same producer (more expensive, non-inductive winding technique is achieved by winding two capacitors in series in one package, np tinfoil)

The diafram below shows non-poypropylene caps (MKT, which is polyester)

The left one is radial, the right axial(to compare these specific products, mainly)
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Old 30th November 2002, 08:58 AM   #19
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Two axial polypropylene caps, one diagram for each brand, the different curves taken from different samples- the author says they behave comparable; these firms may IMO sell the same product, who knows. Also compare these with the susequent diagrams
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Old 30th November 2002, 09:07 AM   #20
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Now some of you will feel inspired
Here comes the specific paper-in-oil cap

The unit tested is not an audio product, it is for motor-run applications. Made by Thomson CSF, in a can and somewhat made to high specs
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