Hello all. New to the forum, but I've been a Boss user for 20 years.
I picked up a PS-2 awhile back, and noticed that when I have the Feedback knob all the way to the right, that I get a very screechy, piercing feedback.
I just picked up a PS-3, and noted that it doesn't do this.
Is there something wrong with the PS-2? Anything that can be adjusted underneath the hood to stop this?
What's the serial number of your PS-2? Early PS-2s had a problem with high frequency noise. This was later corrected but for early units it is recommended to make the changes outlined on this page from the service manual