cap id question

[Neil Jendon]

on 1/25/01 8:19 AM, Scott Gravenhorst at music.maker at gte.net wrote:

> I'd like to see some data regarding distortion, etc.
> that shows the difference numerically.  You know, like
> using a rather simple test circuit, change nothing
> but the capacitor type/brand making sure that the caps
> chosen are closely matched in value and look at spectral
> differences between input and output with various
> waveforms at various frequencies.  Does this exist?

There is this page off of Steve Bench's website. It doesn't quite answer all
your questions, but there's good info and scope shots.


http://members.aol.com/sbench102/caps.html


Also, I'm sure the manufacturers of higher-end caps (Relcap, Hovland,
Auricap, Audio Note, Jensen) have that sort of info about their products.

My comments were based on my experiences, which are rather subjective. I've
spent some time swapping out caps in stereo tube amps, guitar amps, and even
in a passive tone control on a guitar (yeah, goofy). What works best is a
personal choice and is application-specific.

Neil