Glitterrattii problem

[pudabassman]

hi!
first of all i want to say that its a great site and great forum,
i built a few pedals from this site and the results are great so thank you!
but i have 2 problems whit the Glitterrattii:
1. The volume is allways present even if i turn the pot all the way its allways there very quiet but still there.
2. I play bass and i have an 18v onboard preamp in it so when im in active mode the bass signal seems
to clip the Glitterrattii even if the gain is fully off, when in passive mode it is great but i normaly dont play passive.
I may be wrong, im no expert so any help will be gladly appreciated.
I checked the components twice and check the board for bridges and no luck.
thanks

[jkokura]

Both those problems sound like it's working as normal. Some pedals actually turn the volume all the way off when the volume is down, but some don't. In this case I wouldn't suspect it to be a problem.

Secondly, if you send a very strong or hot signal to any overdrive it would likely clip. What may be happening is that you're exceeding the headroom of the pedal. You're probably causing your op amp to clip.

The solution to that problem is to turn the volume down on the bass, or you can alternately use an op amp rated for +18V and run it up at that voltage.

Jacob

[pudabassman]

thanks for the reply.
any suggestions for the opamp?