My Bolt amp is making this wierd noise. Sounds like a flanger or phaser when pushed hard with my OD pedals. I have never heard this noise before in any amp.
Could it be the Phase Inverter tube? The amp is fairly new, about 3-4 months old. Yes, it gets a lot of use but a noise I have never heard.
Oddly, the "tone" is still there,sounds great, but then I'll hear this wierd phasing happening, on certain note, especially the wound strings while playng lead. Very annoying, very! Phse Inverter? I hope its that easy a fix!