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Joe...Yesterday I finished modding my own OS-2 after really liking yours! Anyway...After mine was modded it sounded great but I had this high pitched oscillation that would occur anytime I brought the drive control up past about noon...The high pitched squeeling comes in at around the 1 O'Clock position on the drive knob with the settings as shown below...This fix will also make your OS-2 quieter...
The fix is to take the back cover off and get inside your pedal..There's a long grey wire along the right side of the board,and all you need to do is pull all the slack out of that wire and reposition it over by the on/off switch...I found this fix by having my pedal on and my guitar plugged in while moving wires within the pedal...When I grabbed that grey wire and moved it,the high pitched squeeling was gone and it made the pedal a bit more quiet..There's alot of gain capable within the OS-2 and that's why this oscillation happens...I'm hoping yours isn't doing the same thing? If it is,this will fix it..
Copy my settings and slowly bring the drive knob up past mid point...Listen for a high pitched whistling sound that gets worse as you bring the drive knob up...
Click on this link and look to right on the board for that long grey wire...That's the wire that you'll need to "possibly" reposition if you end up with the oscillations?
The fix is to take the back cover off and get inside your pedal..There's a long grey wire along the right side of the board,and all you need to do is pull all the slack out of that wire and reposition it over by the on/off switch...I found this fix by having my pedal on and my guitar plugged in while moving wires within the pedal...When I grabbed that grey wire and moved it,the high pitched squeeling was gone and it made the pedal a bit more quiet..There's alot of gain capable within the OS-2 and that's why this oscillation happens...I'm hoping yours isn't doing the same thing? If it is,this will fix it..
Copy my settings and slowly bring the drive knob up past mid point...Listen for a high pitched whistling sound that gets worse as you bring the drive knob up...
Click on this link and look to right on the board for that long grey wire...That's the wire that you'll need to "possibly" reposition if you end up with the oscillations?
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