I have recently purchased a new midi foot controller from musicom and a midi baby from disaster area. The midi baby acts as a USB midi host for a source audio C4 pedal, which accepts clock and PC messages from the musicom unit. The problem is that the midi baby requires pin 2 to be grounded. Musicom says it is grounded, but it runs off a two prong 9v and the midi baby won't accept midi from it unless I run it through one of my rack units, with three prong kettle cord plugs.
I have tried a bunch of different devices and it seems that it will only accept midi from my rack units. This is annoying as it means I need to run cables to my rack and back.
Does anyone know of any small devices I could buy or schematics for something to make to act as an earthed midi thru?