I was having some weird little problems with my drum machine and, long story short, troubleshooting pointed to the power supply. Since the Microbrute has the same voltage/amperage requirements, I popped it over and it worked perfectly.
But I need both on at once, obviously! If I could at least find out the tip size used for the microbrute, that would help. But getting a duplicate would be ideal, as I like the form factor (tiny little "floor wart" rather than the gigantic brick the other one had).