isolating oscillator noise...CE-2 Clone

[izzyjams]

I recently built a CE-2 clone, using the schematic from Tonepad.com http://www.tonepad.com/project.asp?id=53.  It sounds great, but I do have one problem that I can't seem to figure out.  When my pedal is on, there is some clicking noise caused by the oscillator (IC2 in the schematic), not such a big deal...but when I have the pedal off this clicking noise actually becomes louder and is outputted into my amp.  I have a true bypass switch installed, even when the input/output of the circuit are grounded or opened they clicking is still there.  I'm pretty sure it's the oscillator outputting into the ground path, but I'm not sure how I can remedy this.  Any help would be GREATLY appreciated!

-izzy

[gez]

If you've used a tried and tested layout (sorry, I didn't check out the link), then try screened cable for your audio line. 

[izzyjams]

Apparently it is a verfied layout, and my pcb seems to look fine after checking and rechecking.  Thanks, I'll see about using screened cable, it's definitely worth a shot.    Any other suggestions???

[gez]

Any other suggestions???

As a rule of thumb, keep wiring connected to LFO's pots short and well away from audio wiring.

[izzyjams]

thanks, i'll give that a shot as well

[gez]

Try it first (may be all that's needed).

[gez]

PS  Keep unscreened audio wires away from the area of your PCB where the LFO resides.

[izzyjams]

shortening the wires seems to have helped quite a bit.  It'll be enough till I buy some shielded cable, which will hopefully eliminate the rest of the noise.