Need help with tube screamer

[warioblast]

Hi,
I built a Grand Laff a couple of weeks ago, didn't really put it through its paces and moved on to other projects, and put the pedal away...
Today I realized I have a light octave down sound  . I'm sure it doesn't come from my cables, cuz I plugged my ibanez ts9 in the same setup and everything was fine.
So where to look out ?
Cheers,
Fabrice

[brett]

Hi.
If you want minimal overtones and undertones from a tubescreamer, you'll want 2 similar clipping diodes.  Many people like extra tones and deliberately use 3 diodes.  Or do you have an obvious and obnoxious problem?

[warioblast]

Houston, I have a problem.

[warioblast]

I've just had an in-deep reading of R.G. "The Technology of the Tube Screamer".

"You can try a number of things like putting one germanium (1N34A from Radio Shack works) diode in series with one of the silicons to add a bit more threshold voltage to one side. A more radical treatment would replace one of the silicons with three germaniums; even more radical would replace one of the silicons with TWO silicons. These last will start to make an octave effect just barely audible at some notes on the guitar neck. "

I guess it's not a problem anymore. I'm gonna mess with the diodes...