Tube Amps / Music Electronics
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|9/9/2000 11:42 PM|
|Elwood||Re: Carbon comps and drifting?|
Don't carb comps change value upward or drift when heated up? Been rethinking this issue, especially after reading replies addressing this and having musicians tell me that when the gig's almost over, their old Fenders seem to get a little or a lot muddier.
Correct me if I'm wrong though, but don't resistors of any kind of composition generally go up in value after being heated up?
From what I understand, carbon comps resist nonlinearly and perhaps that is why they tend to sound good in an amp. It seems like carbon film or metal film, etc. resist linearly. Whether or not this is true or desirable, I wouldn't know.
It would be great to find and use the ideal resistor - one that isn't affected by heat, but resists nonlinearly, I guess, even though it's not as much as an influence on tone as other components (as Speed sez and I tend to agree).
Whatever it is, it's got to be the sum of all the components.
|Peter S Carbon comps drift upwards as soon ... -- 9/10/2000 1:51 AM|