Tweaker 40 FX Loop Oscillation

NoodlerKS

New member
I have a tweaker 40 and want to hook it up to a Boss ES-8 via the 4cm. When I turn up the volume the amp begins to oscillate. I know it has something to do with the loop of tweaker 40. When I hook up to my orange rockerverb there is no problem and it sounds fine. I also have a different brand of pedal loop switcher (disaster area) and have the same oscillation with the tweaker. I've swapped all of the preamp tubes.

Anyone had this problem. It's a shame as out of all of my amps this is one of my favorites.
 
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