I will take pictures and post voltages as soon as possible, BUT, I'll post this and see if someone has any ideas....
I built this up, I've checks cap orientation, all values, etc, but when I turn the volume up on this La Vache, I get this noise. I even get it when there is no transistor in the socket....
[soundcloud]https://soundcloud.com/irmcdermott/la-vache-noise[/soundcloud]
I had something similar to this on a fabbed Pepper Spray but was never really able to track it down. Are you using an etched or fabbed version? And does the pitch of the noise change if you manipulate the pots? The Pepper Spray I mentioned was behaving like a theremin.
Have you tried it using a 9V battery?
I hadn't, I was using the wall wart that came with one of the strymon pedals... i just plugged into the 4x4 and it works fine. Should have tried that last night.