Uglyface oscillates too much for my taste

[gigimarga]

Hello,

I've just reloaded from my recycle bin an old Uglyface, because last week I got a CMOS 555 (it was built with a regular 555 and it sounded like crap).
Now it sounds great (thank you Tim Escobedo!), but it oscillates too much when I tweak the Thresold pot (over 60-70%).
As I am not a fan of oscillations, what can I do to minimize them?
I don't want to eliminate completly, but I want to have a more useable Thresold pot.

Thank you very much!

[GibsonGM]

You could change the pot value to reflect the range of control that you want.  Either use tapering resistors to get there, and/or a new pot.  Measure the resistance when you're in the "sweet spot", then expand the range of control of it.
The Uglyface really IS an oscillator, IIRC, but I hear ya, more control of the sweet spot might be a good way for you to use it. 

[gigimarga]

You could change the pot value to reflect the range of control that you want.  Either use tapering resistors to get there, and/or a new pot.  Measure the resistance when you're in the "sweet spot", then expand the range of control of it.
The Uglyface really IS an oscillator, IIRC, but I hear ya, more control of the sweet spot might be a good way for you to use it. 

Thx GibsonGM!
I've just found some mods made by Mick Bailey (thx Mick for them) which said to replace the 22K with a 56K...so the same thing as you said above