Upon buying my G10's I came across the minor problem of being able to power them from a standard Boss BCB 9v power supply and not cause fatal damage to the units.   I had a chat with the techie who does all my repairs and upgrades and this was the answer.    A small PCB board with two fullsize USB inputs at one end and the ability to plug in one of the spare 9v power supplies at the other, but to do this you first have to snip the barrel connector off. The board is regulated so no more than