Takatsuki 300B 2 different models, anyone noticed?

It's fine to both post links and pics for pics just copy paste from the web.

Those "glasses" are called "getters". They are used to remove residual gases left inside tubes after vacuum pumping.

@jasonbourne52 , the “glasses” are typically made from mica and are used to support and align the tube internals inside the glass envelope. In some instance, they may be attached to the getter.  

Do they change the sound if they make them in another shape as you can see on the pictures?

There must be a reason why they changed them....

I also saw they have manufactured a new production in the spring this year.

Thank's for helping me...Jond and Jason!