MXR M-108 EQ

     My friend brought this vintage MXR M-108 to me when it stopped working during a show. I took it apart and tested it, but it works fine! I think the problem is either faulty (non-"locking") jacks, a power problem, or the stiffened inner foam falling onto the circuit.

      Probably one of the first graphic EQs--it's a strange pedal in that it doesn't have a stomp switch and it doesn't take 9v batteries/DC. Instead, it has an AC cord and a transformer which puts out 15V.

     In my short tests through my SS amp, I found the 31.2 Hz and 18KHz sliders to have little effect. That is most likely just due to the fidelity of my amp/speaker!

Gut shot and schem: