I have a magazine that says Dimebag Darrell (Pantera) use a trick in the mid frequencies, but I don't know if he use full mid frequency or no mid frequency. Anybody could elp me? And how I can get full mid and no mid with less components possible?

a good no-components notch is the twin t series filter.  it's used to notch out 50Hz hum and stuff like that - you can choose components to get a high-Q notch, or a low-Q notch which is probably what you want.

it doesn't even use a transistor or opamp or anything, it's just passive.  have a google.

But the Twin T notch filter will give me full mid or no mid? If somebody have some cool frequencys for full mid and no mid, I can use the tone stack calculator.

I don't know what Mr. Darrell sounds like but the recent MXR Dimebag distortion pedal seems to suggest he basically uses a lot of gain and EQ-ing in addition to whatever it is his pointy guitars do.

I would recommend making one of the semi-parametric EQ's that RG has at his site in the Parametric EQ Made Easy document.  They are pretty simple and have only a handful of components.  You can also build them into a distortion so that you can stick one tunable section BEFORE the clipping section and another AFTER the clipping section.  With a pot for frequency-select and cut/boost for each section, plus a distortion amount and volume pot for the fuzz, you should be able to get a huge range of sounds.

Typically - metal-type sounds are scopped mids (heavy cut)..
take any 3-band EQ and put the mids to 0, low and high to 10 - and you'll get a 'metal' type EQ sound...

for heavy sounds - I like to dial a LITTLE of the mids back in to thicken it up, otherwise it sounds to thin for my taste.
"-)

I read an article that he uses the hard to find mxr blue box for this--not sure what that is since i believe there are at least 2 mxr pedals that i can think of. This is the same one hes used since Cowboys from hell. From what i can recall it was a 5 band eq.

Dimebag Rocks!!  Met him a while back. Very nice guy!

Thanks a lot.