Hello all new to the forum and to Mesa amps. I recently purchased a Mesa Tremoverb 2x12 combo in a blue snakeskin from my local guitar center for a great price! Loving it so far. The amp did not come with a footswitch so I immediately was on the hunt for one. I found an older single button mesa switch through a friend of a friend. I traded an old tremolo pedal I had sitting in a bin for it. Problem is, I can't get it to work. I have it plugged into the foot switch jack and have the channel select switch on the back flipped up to where it says to be and nothing happens. I press the footswitch and the led turns on but no switching, I press it again and the led turns off. Anyone have any ideas? Something I'm missing or not doing? Maybe pedal is not compatible with my amp? Thanks.