I have a Beta Lead that I recently got that's non functional. It powers up so the switch is good. It's at my tech as I write this, but it's waaaay down on the "to do" list for him. Depending on his verdict, I may end up parting it out, but I have no idea when this will happen. I'll let you know as soon as I do, but couldn't you wire around the switch for short term emergency use?