Is it possible for bad power from the outlet to cause unusual tonal artifacts? In the last couple of days I've been prototyping a couple of similar amps. There's been this little "sweet" artifact that you can sometimes hear around the note. It's far more pronounced using an overdrive pedal. That's where I first noticed it. After tearing my hair out trying different circuit tweaks, tubes and speakers I tried my other amps. Holy Crap! They do it too! There's this extra harshness with the tone that wasn't there before. It happens when the pedals are powered from a One Spot, or a battery or if they're used by themselves with no other pedals in line. I can hear a bit of it when the amps are clean. The AC tonight measues 123 volts. A little high, but it's around 120 other times I've measured it. So, can the AC coming in have this affect? Is there a way to test for it? Thanks.
Dave
Dave
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