My amp has been sitting unused for about a year. It was unplugged, covered, and in a climate controlled room. I went to power it up last night and the mains fuse blew within less than a second. Any ideas why? Furthermore does anyone know the Mercury Magnetics part number for the replacement power tr...

I recently upgraded both transformers in my TH30 head and now I am ready to install the choke. Can anyone tell me what the board location of the choke is? I'm getting conflicting reports off of the internet.