We understand you may be new to this Pacheco and that is why we are all here to help each other with this great hobby.
I think others made the point clear enough at this point about not turning it back on and leaving it on in its condition. Lesson learned things happen. You have a very strange case and at the time it may have seemed appropriate to get more recordings.
That's a real shame on the shipping and that it was possibly banged up in the process. It probably is too late to blame it on the freight courier at this point sadly. You should still try to work with the seller and the shipping company to prove your case though but it may be difficult if there is not a before and after evidence to make the case strong enough to have the courier cover losses.
As mentioned previously speaking to the seller may help in some for or fashion if you both are patient with each other in explaining things. He does have a right though to push the issue back on the shipping company. /
This is why with expensive purchases its always best to check right away or before signing. I think some of us have had some kind of similar issues happen if your in any vintage electronics hobby long enough. So a good lesson to learn none the less, live and learn.
The neck board the small board at the very back of the tube is what I was referring to. It is completely crooked, I just have never seen that happen before but I know it could be possible I suppose if improperly handled some way or abused.
The neck board should never be twisted at an angle, at least I never seen anything like it.
It needs to be vertical or horizontal with the orientation of the tube as it only plugs in on the back in one direction only. If you rotate the tube the neck board will rotate with it and also usually the chassis if its on the frame with the CRT so you don't see them at an angle like you had shown.
Since you say it is crooked, the pins that connect the tube and that board together could be seriously damaged or mangled and touching each other or who knows what.
If this is the case it could cause all kinds of very bad things to happen. Those pins create your color images inside the tube among other things and also carry some slightly higher voltages. If they short it could short the tube or the chassis.
Hopefully the tube is not destroyed or the pins on the back neck where that small neck board connects. If the pins are destroyed or broken beyond some form of saving it will more than likely be the death of it. I would rather replace the chassis than locate a new tube entirely my self so lets hope for the best.
Be very very careful removing the neck board, the pins are delicate. Judging by the fact the neck board is already crooked you need to be extra gentle with the process. The usual procedure to remove the neck board is to just gently pull it straight back towards you, away from the tube.
Once that neck board and chassis is off get a picture of the back of the tube where the pins poke out and also some pictures of the chassis
It goes with out saying but make sure the monitor is complete discharged before doing any of this.
God speed my friend