Thanks for your reply, It’s much appreciated… yeah thats exactly what phantom power is for… It puts out 48v current… That 48v would have been sent to the output socket of the big muff… I opened it up but couldn’t get a good look at the circuit board because the rotary knobs are secured with small screws that I don’t have a screwdriver for… and the rotary knobs secure the circuit board to the front panel…I’m picking up tomorrow a screwdriver tomorrow though…

Since sending Phantom to the Big Muff the pedals LED flashes somtimes when plugging into the input so I know it still lights up, but it doesn’t light up when bypass switch is pressed… The pedal is outputing a 50Hz hum and a Buzzing at around 300Hz when unbypassed.