Proper way to rotate the yoke of a Videocolor tube?

[keropi]

Hello!

I noticed on my 28" videocolor tube that need to make a small adjustment in the yoke, specifically rotate it a little to the left so the picture is level. But I am unsure how to do it properly on this tube - maybe there is a better way?




I have loosen screw "A" .
Now, is it possible to rotate assembly "B" while base "C" is glued to the tube?
Does this work this way or do I need to loosen base "C" from it's 4 anchor points and rotate it as a whole ?
I kinda hope that "B" can rotate slightly while in base "C" - it should be way easier

Thanks in advance for any info/tips!

[keropi]

so I guess my theory was silly and I have to rotate by breaking free the 4 anchor points... nothing is easy anymore

[PrincessPrinPrin]

It's one piece but I don't recommend to mess with this yoke. The tabs around the neck will break, they're very fragile and glued to the glass.

[keropi]

You mean the 4 anchor points glued to the tube? They seem pretty solid to me , the tube in question is a brand new one so they don't feel rigid/cooked.
The truth is that I am not that keen on doing that but it annoys me so much having payed good money for it and have it not look as good as possible. I have not decided yet because that mounting system does look annoying to work with...

[cools]

You'll likely find rotating it will throw out something else. Only mess with the yoke if something is seriously wrong and the tube is otherwise scrap.

[keropi]

OK I am sold, won't mess with it
thanks for your input guys!

[PrincessPrinPrin]

No, I mean the tabs around the neck. If you twist the yoke they will break. This is a problem only on Videocolor/Thomson tubes as the plastic they used breaks very easily. The yokes on Asian tubes (Toshiba, Orion, Samsung) don't have this problems as they're made of Nylon/polyammide which bends but doesn't snap. A few years ago I tried to find a method for removing Videocolor yokes safely which involves using dental floss and lubricant. Still pretty difficult.

https://i.imgur.com/1Zj9LAV.jpg
https://i.imgur.com/oDd9c7g.jpg
https://i.imgur.com/FNsZ4mo.jpg
https://i.imgur.com/J9EnQdl.jpg
https://i.imgur.com/j7qtsd4.jpg
https://i.imgur.com/OZZP2LN.jpg
https://i.imgur.com/HfcHyie.jpg
https://i.imgur.com/WvayjRZ.jpg

I also advise against tampering with the yoke if it's just a tilted picture. Just tilt your head while playing.

[keropi]

[...]
I also advise against tampering with the yoke if it's just a tilted picture. Just tilt your head while playing.

will do!