Neovibe Problems

[Luy_901]

Hi to everyone,
i'm building this pedal on ggg pcb, following the instructions.
the pedal seems to work, i've done also this mods: 47k res at input to 3M3 to raise the impedance.
                                                                                    different order of phase caps, same values but different order.
I've discovered 2 problems: the pedal produces a strange hum, even without power supply. the hum seems to reduce if I connect it to my other pedals. and the hum increases when i touch the volume pot or the vibrato/chorus switch

the other problem is that if i reduce Depth pot, i notice a great treble loss. when i switch to vibrato, magically all the trebles come in, also with depth pot all the way down.

Can you help me resolving this problems? thanks
ah, and sorry for my poor english.

[tubegeek]

Is your project installed in a box? It is normal for a circuit that is not enclosed to pick up noise.