My Fox is howling

Robusto

Active member
Hello,

I finished up with the Muffin Fuzz Foxey Lady version last night. Getting howling/squealing if either the volume or gain is turned up past 3 o'clock. Is this likely to be transistors with gain too high? I've rechecked all the parts are correct, and it sounds amazing if I keep the pots around three o'clock, but if I max them it's unusable. Tried single coils and humbucker, no difference. I used 2N5089 as suggested.

Thanks!
 
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