TB MKII wall-wart noise

[yeeshkul]

I have trouble with AC noise when i feed my Tone Bender MK II clone from a wall wart. I have no clue why, everything should be all right. Plastic DC socket, circuit ground is soldered straight to the input socket ground lug .... The middle pot is just a bias pot. I can't see any ground loop.
Any idea guys?

Here is the picture:

[frankclarke]

Of course you get noise with a wall wart.
For example:
http://www.muzique.com/lab/filter.htm

[yeeshkul]

thank you, but can you please tell me why the wall wart works well with some pedals and gets noisy with other pedals?

[frankclarke]

For one thing, the TB2 has ridiculously high gain, and amplifies any noise source.