Forgive me for having a little fun but... If you use a #14 wire to connect your anode to your tank circuit, you might be a Wizard. If you stuff your unshielded filament transformer right next to your tank coil, you might be a Wizard. If you cut a big hole in your front panel to mount a meter and don't shield it, you might be a Wizard. If you don't mind the possibility of B+ arriving at your antenna and forget a plate blocking choke, you might be a Wizard. If you put a picture of a Wizard on the front of your box in hopes it will magically fix all of the mistakes, you might be a Wizard.
Getting something to work and having it work right are two entirely different things. When there is no RF backing down the AC line or leaking like a sive out of the cabinent, you can use the amp without worrying about blowing up the neighbors new plasma or computer. I'd like to hold an RF probe in front of that meter or around the AC line cord when it's keyed (with someone else's scope connected). Think there are any filter inductors or bypass caps on the line?
Imagine buying one of these and the only over current protection on the amp is an AC circuit breaker? How about breaking the bank and spending $10 on optocouplers across the meter shunts to give some grid and plate current limits? I don't even think a grid meter is included. Wizard current limit = use a transformer too small to work the tube in the first place and save money on both protection circuits and transformer.