WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
Building, troubleshooting and testing of these amplifiers should only be
performed by someone who is thoroughly familiar with
the safety precautions around high voltages.
Once upon a time there were cats around. They never looked twice at my tubes, any more than they wanted to play with light bulbs.
They did, however, like to scent my Tympani IVs.
No cats around here any more.
(And I ain't tellin' how I got rid of 'em!)
I have four cats, ranging from 20 years (!) down to 2 1/2. Although they sometimes get disconcertingly close to my tube gear, they have never done it any harm. The bigger problem is that they like to jump on my worktable while I'm soldering, but again they've never injured me or themselves. I think they have a very good sense of what's dangerous.