yep leaving the whole cover off. Make it a LOT easier to check temps, replace tubes (esp the 3A3, its easy to break that plastic bucket, with the cover off you can hold the metal part down and not stress the plastic bits after discharging the CRT of course).
I know about the concerns for X rays and Fire, both of which are supposed to be contained by the full metal box, but its my set and I understand about the dangers. I am not too concerned about X rays since its got a metal cabinet and I don't plan to stand behind it in operation.
I could mount a fan to the fly cover box, and may end up doing that for cooling but it still is a pain to replace the 3A3 with the box in place.
This is why I titled the video "nearly done"
