Official Blackstaramps Forum

Hi! I have a Series One 100 that has developed a horrible squealing noise. I thought it might have been in my Effects chain, but it happened yesterday with only a guitar plugged straight in. There is a fairly quiet click, then the background noise steps up in volume, and about 5 seconds later the sq...

Does any one have a schematic for the 4 channel footswitch? I'm going to make a little interface board up so I can use the amp ctrl function of my Boss Gt 100 to do some basic channel switching, and I'm trying to figure out if it changes channel by inputting 5V or taking the corresponding channel ra...