Guys can you help me? I have an Original MXR carbon copy delay. Now when i turn it on theres a
hum comming out. when its off, theres no hum. I tried using both batteries and Voodoo Labs power supply and it still has hum. I also used 2 amps....still hum. I also switched my cables with it and theres still hum. It cant be the guitar cause even if theres nothing plugged to the end still hum or if im using the humbucker on the guitar still hum, even if the volume is on zero on the guitar theres still hum. Can you guys help me?