I did the ATX Power Supply hack and my A500+ is up an running again .. just loaded workbench from disk just like the old times!!
It is a pitty re: Amiga Power Supply. Would like to see if it can be fixed. I really throw nothing Amiga these days. Thanks to everyone for all the help.
You might be able to find some kind of surplus supply that would fit into the old case.
I wired an extra plug onto the external supply that came with an Amiga HD. That thing was big enough for the drive and the computer.