I know. I gave up and sold it all, but I had all the components to assemble a Yc-179 multiband amplifier using two vacuum variables and bandswitched inductor taps. It would’ve been my first amplifier, but I did right by myself all except for selling it all. Now that I know more about what I’m doing, I wish I would’ve hung onto all that stuff so I could’ve finished it at a later date. I really don’t like the thought of cranking on a turns counter, but like you said, you probably never have to worry about arcing a properly rated vacuum cap.