Love the Woos I heard at the SF meet but need to ask a practical question... how hot do these tubes really get? Hot enough to burn skin? Hot enough to constitute a fire hazard if paper/cloth/plastic accidentally falls on them? I wasn't brave enough to actually try to touch them. I have cats that like to crawl over everything so I can't have stuff exposed that might be dangerous. Maybe somebody has invented a wire mesh or cage to cover amps or tubes like this?
Yes, they get very hot. If you're worried about the cats, they're pretty smart. The Woos don't come with cages, you would just have to be careful about what's around them.