I will post some photos soon.  I'm not very experienced with taking voltage readings so I don't really know where to take readings that might be relevant.  I assumed that if I built it exactly like the layout and photos on the Ceriatone site that it would work fine.  Shortsighted....I know.  I'm very eager to learn, as I'm currently building a JTM 50 kit, for a friend.  Any tips on where to take voltage readings would be greatly appreciated.

Yes, the amp makes the high pitched tone whether I have an instrument plugged in or not.

Thank you very much for replying!
-Corey

Hey out there,
I'm new to this forum.
I built a Ceriatone Vibro Champ kit a while back. I've had some recent issues.  I usually run it into a Dr. Z Airbrake and then into a 1x12 cab, so I can crank it up in my apartment.  I've been really liking the clean sounds recently, so I took the attenuator out, and noticed that it squeels when I have the volume set from 0 to about 1/3 of the way up. Past that it goes away.  It's actually more like a high pitch tone.  I was wondering if anyone out there had ideas about what's happening and how I might fix this.  This was my first build and I built it exactly to the Ceriatone layout, as well as the chassis photos on the site.

Thanks,
-Corey