ARP Axxe powersupply problems!

Hi all

My Axxe died a few years ago of what I suspect is a power supply problem. Stupidly back then I thought I'd remove the transformer and replace it. I never got around to doing it. Now I can't find the transformer or the screws that held it down!!
I want to get her back to working order and do even the extended range filter mod since i'm a lot handier with a soldering iron these days. Definetly something is up with either the transformer or regulator board. I know that it needs to output +15v, -15v and ground but I have no idea what the current should be. Help anyone?!!