GregS wrote:

In article UvNrh.163569$YV4.66232@edtnps89, "Homer J Simpson" wrote:

"Bob Urz" wrote in message
...

What the Hell is a "esoteric value"? How does one measure "esoteric
values"? Is there a "esoteric value" meter?

Sure. It's called an E-Meter and your local Scientology Centre has them.


Dam, that's got me jumping on the sofa!



One parameter that might be considered esoteric, is delectric absorbtion. This will affect
capacitance, but can be measured out. it can affect DC circuits, or ac circuits with a dc
bias. Better caps have low DA. Electrolytics are really bad in this respect. DA also causes
frequency dependant cap values.

greg

Now were cooking on gas. Define what can make a difference.
Frequency dependent values. Now, you have to define a standard
repeatable test to quantify the results. Other wise its smoke and mirrors again. Is there a
Audio standard that i know about how to do this? not really. So pick a arbitrary test set up
and call it fact? To do this, you would need to define frequency range. drive and load
impedance. and what deviation from standard parameters constitute an audible difference. I
suppose its not beyond the realm of possibility (if you define the above test and criteria) to
select caps like how you match vacuum tubes for characteristics.

A few interesting links on the subject:

http://www.audience-av.com/on_capaci...c_material.htm

http://www.national.com/rap/Applicat...570,28,00.html

Bob


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